From faa8aa990a4e140c93e075959e516ea5c65af344 Mon Sep 17 00:00:00 2001
From: Myst <1592048+LeMyst@users.noreply.github.com>
Date: Thu, 21 Jul 2022 09:08:36 +0200
Subject: [PATCH] Split model classes in its own file

---
 test/test_wbi_core.py                         |   2 +-
 wikibaseintegrator/datatypes/basedatatype.py  |   2 +-
 .../datatypes/globecoordinate.py              |   2 +-
 wikibaseintegrator/entities/baseentity.py     |   3 +-
 wikibaseintegrator/entities/item.py           |   2 +-
 wikibaseintegrator/entities/mediainfo.py      |   3 +-
 wikibaseintegrator/models/__init__.py         |  13 -
 wikibaseintegrator/models/alias.py            |   5 +
 wikibaseintegrator/models/aliases.py          |   6 +-
 wikibaseintegrator/models/claim.py            | 251 ++++++++++++++++++
 wikibaseintegrator/models/claims.py           | 248 +----------------
 wikibaseintegrator/models/descriptions.py     |   3 +-
 wikibaseintegrator/models/form.py             |  80 ++++++
 wikibaseintegrator/models/forms.py            |  81 +-----
 wikibaseintegrator/models/glosses.py          |   5 +
 wikibaseintegrator/models/labels.py           |   3 +-
 wikibaseintegrator/models/language_value.py   |  84 ++++++
 wikibaseintegrator/models/language_values.py  |  80 +-----
 wikibaseintegrator/models/lemmas.py           |   3 +-
 wikibaseintegrator/models/qualifiers.py       |   4 +-
 wikibaseintegrator/models/reference.py        |  75 ++++++
 wikibaseintegrator/models/references.py       |  72 +----
 wikibaseintegrator/models/representations.py  |   5 +
 wikibaseintegrator/models/sense.py            |  43 +++
 wikibaseintegrator/models/senses.py           |  44 +--
 wikibaseintegrator/models/sitelink.py         |  15 ++
 wikibaseintegrator/models/sitelinks.py        |  11 +-
 wikibaseintegrator/models/snak.py             | 101 +++++++
 wikibaseintegrator/models/snaks.py            |  99 +------
 wikibaseintegrator/wbi_fastrun.py             |   4 +-
 30 files changed, 699 insertions(+), 650 deletions(-)
 create mode 100644 wikibaseintegrator/models/alias.py
 create mode 100644 wikibaseintegrator/models/claim.py
 create mode 100644 wikibaseintegrator/models/form.py
 create mode 100644 wikibaseintegrator/models/glosses.py
 create mode 100644 wikibaseintegrator/models/language_value.py
 create mode 100644 wikibaseintegrator/models/reference.py
 create mode 100644 wikibaseintegrator/models/representations.py
 create mode 100644 wikibaseintegrator/models/sense.py
 create mode 100644 wikibaseintegrator/models/sitelink.py
 create mode 100644 wikibaseintegrator/models/snak.py

diff --git a/test/test_wbi_core.py b/test/test_wbi_core.py
index 4bb39419..1d3d2569 100644
--- a/test/test_wbi_core.py
+++ b/test/test_wbi_core.py
@@ -6,7 +6,7 @@
                                           Sense, String, TabularData, Time)
 from wikibaseintegrator.datatypes.extra import EDTF, LocalMedia
 from wikibaseintegrator.entities import ItemEntity
-from wikibaseintegrator.models import Descriptions
+from wikibaseintegrator.models.descriptions import Descriptions
 from wikibaseintegrator.wbi_config import config as wbi_config
 from wikibaseintegrator.wbi_enums import ActionIfExists, WikibaseDatePrecision, WikibaseRank, WikibaseSnakType
 from wikibaseintegrator.wbi_helpers import generate_entity_instances, search_entities
diff --git a/wikibaseintegrator/datatypes/basedatatype.py b/wikibaseintegrator/datatypes/basedatatype.py
index 94c62b7b..55b4700f 100644
--- a/wikibaseintegrator/datatypes/basedatatype.py
+++ b/wikibaseintegrator/datatypes/basedatatype.py
@@ -3,7 +3,7 @@
 import re
 from typing import Any, List, Type, Union
 
-from wikibaseintegrator.models import Claim
+from wikibaseintegrator.models.claim import Claim
 
 
 class BaseDataType(Claim):
diff --git a/wikibaseintegrator/datatypes/globecoordinate.py b/wikibaseintegrator/datatypes/globecoordinate.py
index 30e206ec..6978fac1 100644
--- a/wikibaseintegrator/datatypes/globecoordinate.py
+++ b/wikibaseintegrator/datatypes/globecoordinate.py
@@ -2,7 +2,7 @@
 from typing import Any
 
 from wikibaseintegrator.datatypes.basedatatype import BaseDataType
-from wikibaseintegrator.models import Claim
+from wikibaseintegrator.models.claim import Claim
 from wikibaseintegrator.wbi_config import config
 
 
diff --git a/wikibaseintegrator/entities/baseentity.py b/wikibaseintegrator/entities/baseentity.py
index ffd8543f..583a9f2d 100644
--- a/wikibaseintegrator/entities/baseentity.py
+++ b/wikibaseintegrator/entities/baseentity.py
@@ -8,7 +8,8 @@
 
 from wikibaseintegrator import wbi_fastrun
 from wikibaseintegrator.datatypes import BaseDataType
-from wikibaseintegrator.models.claims import Claim, Claims
+from wikibaseintegrator.models.claim import Claim
+from wikibaseintegrator.models.claims import Claims
 from wikibaseintegrator.wbi_enums import ActionIfExists
 from wikibaseintegrator.wbi_exceptions import MissingEntityException, ModificationFailed, MWApiError
 from wikibaseintegrator.wbi_helpers import delete_page, mediawiki_api_call_helper
diff --git a/wikibaseintegrator/entities/item.py b/wikibaseintegrator/entities/item.py
index 227fe2cf..3867d650 100644
--- a/wikibaseintegrator/entities/item.py
+++ b/wikibaseintegrator/entities/item.py
@@ -4,10 +4,10 @@
 from typing import Any, Dict, Union
 
 from wikibaseintegrator.entities.baseentity import BaseEntity
-from wikibaseintegrator.models import LanguageValues
 from wikibaseintegrator.models.aliases import Aliases
 from wikibaseintegrator.models.descriptions import Descriptions
 from wikibaseintegrator.models.labels import Labels
+from wikibaseintegrator.models.language_values import LanguageValues
 from wikibaseintegrator.models.sitelinks import Sitelinks
 
 
diff --git a/wikibaseintegrator/entities/mediainfo.py b/wikibaseintegrator/entities/mediainfo.py
index a0a5dbbf..4baf919f 100644
--- a/wikibaseintegrator/entities/mediainfo.py
+++ b/wikibaseintegrator/entities/mediainfo.py
@@ -4,10 +4,11 @@
 from typing import Any, Dict, List, Union
 
 from wikibaseintegrator.entities.baseentity import BaseEntity
-from wikibaseintegrator.models import Claims, LanguageValues
 from wikibaseintegrator.models.aliases import Aliases
+from wikibaseintegrator.models.claims import Claims
 from wikibaseintegrator.models.descriptions import Descriptions
 from wikibaseintegrator.models.labels import Labels
+from wikibaseintegrator.models.language_values import LanguageValues
 from wikibaseintegrator.wbi_helpers import mediawiki_api_call_helper
 
 
diff --git a/wikibaseintegrator/models/__init__.py b/wikibaseintegrator/models/__init__.py
index cff30bec..e69de29b 100644
--- a/wikibaseintegrator/models/__init__.py
+++ b/wikibaseintegrator/models/__init__.py
@@ -1,13 +0,0 @@
-from .aliases import Alias, Aliases
-from .basemodel import BaseModel
-from .claims import Claim, Claims
-from .descriptions import Descriptions
-from .forms import Form, Forms
-from .labels import Labels
-from .language_values import LanguageValue, LanguageValues
-from .lemmas import Lemmas
-from .qualifiers import Qualifiers
-from .references import Reference, References
-from .senses import Glosses, Sense, Senses
-from .sitelinks import Sitelink, Sitelinks
-from .snaks import Snak, Snaks
diff --git a/wikibaseintegrator/models/alias.py b/wikibaseintegrator/models/alias.py
new file mode 100644
index 00000000..20eee198
--- /dev/null
+++ b/wikibaseintegrator/models/alias.py
@@ -0,0 +1,5 @@
+import wikibaseintegrator.models.language_value as language_value
+
+
+class Alias(language_value.LanguageValue):
+    pass
diff --git a/wikibaseintegrator/models/aliases.py b/wikibaseintegrator/models/aliases.py
index 20e599d0..66e43f4f 100644
--- a/wikibaseintegrator/models/aliases.py
+++ b/wikibaseintegrator/models/aliases.py
@@ -2,8 +2,8 @@
 
 from typing import Dict, List, Optional, Union
 
+from wikibaseintegrator.models.alias import Alias
 from wikibaseintegrator.models.basemodel import BaseModel
-from wikibaseintegrator.models.language_values import LanguageValue
 from wikibaseintegrator.wbi_config import config
 from wikibaseintegrator.wbi_enums import ActionIfExists
 
@@ -91,7 +91,3 @@ def from_json(self, json_data: Dict[str, List]) -> Aliases:
     # def __contains__(self, item):
     #     all_aliases = [item for sublist in list(self.aliases.values()) for item in sublist]
     #     return item in list(map(lambda x: x.value, all_aliases))
-
-
-class Alias(LanguageValue):
-    pass
diff --git a/wikibaseintegrator/models/claim.py b/wikibaseintegrator/models/claim.py
new file mode 100644
index 00000000..8c23a998
--- /dev/null
+++ b/wikibaseintegrator/models/claim.py
@@ -0,0 +1,251 @@
+from __future__ import annotations
+
+import copy
+from typing import Any, Callable, Dict, List, Optional, Union
+
+import wikibaseintegrator.models.basemodel
+from wikibaseintegrator.models.qualifiers import Qualifiers
+from wikibaseintegrator.models.reference import Reference
+from wikibaseintegrator.models.references import References
+from wikibaseintegrator.models.snak import Snak
+from wikibaseintegrator.models.snaks import Snaks
+from wikibaseintegrator.wbi_enums import WikibaseRank
+
+
+class Claim(wikibaseintegrator.models.basemodel.BaseModel):
+    DTYPE = 'claim'
+
+    def __init__(self, qualifiers: Qualifiers = None, rank: WikibaseRank = None, references: Union[References, List[Union[Claim, List[Claim]]]] = None) -> None:
+        """
+
+        :param qualifiers:
+        :param rank:
+        :param references: A References object, a list of Claim object or a list of list of Claim object
+        """
+        self.mainsnak = Snak(datatype=self.DTYPE)
+        self.type = 'statement'
+        self.qualifiers = qualifiers or Qualifiers()
+        self.qualifiers_order = []
+        self.id = None
+        self.rank = rank or WikibaseRank.NORMAL
+        self.removed = False
+
+        self.references = References()
+
+        if isinstance(references, References):
+            self.references = references
+        elif isinstance(references, list):
+            for ref_list in references:
+                ref = Reference()
+                if isinstance(ref_list, list):
+                    snaks = Snaks()
+                    for ref_claim in ref_list:
+                        if isinstance(ref_claim, Claim):
+                            snaks.add(Snak().from_json(ref_claim.get_json()['mainsnak']))
+                        else:
+                            raise ValueError("The references must be a References object or a list of Claim object")
+                    ref.snaks = snaks
+                elif isinstance(ref_list, Claim):
+                    ref.snaks = Snaks().add(Snak().from_json(ref_list.get_json()['mainsnak']))
+                elif isinstance(ref_list, Reference):
+                    ref = ref_list
+                self.references.add(reference=ref)
+        elif references is not None:
+            raise ValueError("The references must be a References object or a list of Claim object")
+
+    @property
+    def mainsnak(self) -> Snak:
+        return self.__mainsnak
+
+    @mainsnak.setter
+    def mainsnak(self, value: Snak):
+        self.__mainsnak = value
+
+    @property
+    def type(self) -> Union[str, Dict]:
+        return self.__type
+
+    @type.setter
+    def type(self, value: Union[str, Dict]):
+        self.__type = value
+
+    @property
+    def qualifiers(self) -> Qualifiers:
+        return self.__qualifiers
+
+    @qualifiers.setter
+    def qualifiers(self, value: Qualifiers) -> None:
+        assert isinstance(value, (Qualifiers, list))
+        self.__qualifiers: Qualifiers = Qualifiers().set(value) if isinstance(value, list) else value
+
+    @property
+    def qualifiers_order(self) -> List[str]:
+        return self.__qualifiers_order
+
+    @qualifiers_order.setter
+    def qualifiers_order(self, value: List[str]):
+        self.__qualifiers_order = value
+
+    @property
+    def id(self) -> Optional[str]:
+        return self.__id
+
+    @id.setter
+    def id(self, value: Optional[str]):
+        self.__id = value
+
+    @property
+    def rank(self) -> WikibaseRank:
+        return self.__rank
+
+    @rank.setter
+    def rank(self, value: WikibaseRank):
+        """Parse the rank. The enum thows an error if it is not one of the recognized values"""
+        self.__rank = WikibaseRank(value)
+
+    @property
+    def references(self) -> References:
+        return self.__references
+
+    @references.setter
+    def references(self, value: References):
+        self.__references = value
+
+    @property
+    def removed(self) -> bool:
+        return self.__removed
+
+    @removed.setter
+    def removed(self, value: bool):
+        self.__removed = value
+
+    def remove(self, remove=True) -> None:
+        self.removed = remove
+
+    def update(self, claim: Claim) -> None:
+        self.mainsnak = claim.mainsnak
+        self.qualifiers = claim.qualifiers
+        self.qualifiers_order = claim.qualifiers_order
+        self.rank = claim.rank
+        self.references = claim.references
+
+    def from_json(self, json_data: Dict[str, Any]) -> Claim:
+        """
+
+        :param json_data: a JSON representation of a Claim
+        """
+        self.mainsnak = Snak().from_json(json_data['mainsnak'])
+        self.type = str(json_data['type'])
+        if 'qualifiers' in json_data:
+            self.qualifiers = Qualifiers().from_json(json_data['qualifiers'])
+        if 'qualifiers-order' in json_data:
+            self.qualifiers_order = list(json_data['qualifiers-order'])
+        self.id = str(json_data['id'])
+        self.rank: WikibaseRank = WikibaseRank(json_data['rank'])
+        if 'references' in json_data:
+            self.references = References().from_json(json_data['references'])
+
+        return self
+
+    def get_json(self) -> Dict[str, Any]:
+        json_data: Dict[str, Union[str, List[Dict], List[str], Dict[str, str], Dict[str, List], None]] = {
+            'mainsnak': self.mainsnak.get_json(),
+            'type': self.type,
+            'id': self.id,
+            'rank': self.rank.value
+        }
+        # Remove id if it's a temporary one
+        if not self.id:
+            del json_data['id']
+        if len(self.qualifiers) > 0:
+            json_data['qualifiers'] = self.qualifiers.get_json()
+            json_data['qualifiers-order'] = list(self.qualifiers_order)
+        if len(self.references) > 0:
+            json_data['references'] = self.references.get_json()
+        if self.removed:
+            if self.id:
+                json_data['remove'] = ''
+        return json_data
+
+    def has_equal_qualifiers(self, other: Claim) -> bool:
+        # check if the qualifiers are equal with the 'other' object
+        self_qualifiers = copy.deepcopy(self.qualifiers)
+        other_qualifiers = copy.deepcopy(other.qualifiers)
+
+        if len(self_qualifiers) != len(other_qualifiers):
+            return False
+
+        for property_number in self_qualifiers.qualifiers:
+            if property_number not in other_qualifiers.qualifiers:
+                return False
+
+            if len(self_qualifiers.qualifiers[property_number]) != len(other_qualifiers.qualifiers[property_number]):
+                return False
+
+            flg = [False for _ in range(len(self_qualifiers.qualifiers[property_number]))]
+            for count, i in enumerate(self_qualifiers.qualifiers[property_number]):
+                for q in other_qualifiers:
+                    if i == q:
+                        flg[count] = True
+            if not all(flg):
+                return False
+
+        return True
+
+    # TODO: rewrite this?
+    def __contains__(self, item):
+        if isinstance(item, Claim):
+            return self == item
+
+        if isinstance(item, str):
+            return self.mainsnak.datavalue == item
+
+        return super().__contains__(item)
+
+    def __eq__(self, other):
+        if isinstance(other, Claim):
+            return self.mainsnak.datavalue == other.mainsnak.datavalue and self.mainsnak.property_number == other.mainsnak.property_number and self.has_equal_qualifiers(other)
+
+        if isinstance(other, str):
+            return self.mainsnak.property_number == other
+
+        raise super().__eq__(other)
+
+    def equals(self, that: Claim, include_ref: bool = False, fref: Callable = None) -> bool:
+        """
+        Tests for equality of two statements.
+        If comparing references, the order of the arguments matters!!!
+        self is the current statement, the next argument is the new statement.
+        Allows passing in a function to use to compare the references 'fref'. Default is equality.
+        fref accepts two arguments 'oldrefs' and 'newrefs', each of which are a list of references,
+        where each reference is a list of statements
+        """
+
+        if not include_ref:
+            # return the result of BaseDataType.__eq__, which is testing for equality of value and qualifiers
+            return self == that
+
+        if self != that:
+            return False
+
+        if fref is None:
+            return Claim.refs_equal(self, that)
+
+        return fref(self, that)
+
+    @staticmethod
+    def refs_equal(olditem: Claim, newitem: Claim) -> bool:
+        """
+        tests for exactly identical references
+        """
+
+        oldrefs = olditem.references
+        newrefs = newitem.references
+
+        def ref_equal(oldref: References, newref: References) -> bool:
+            return (len(oldref) == len(newref)) and all(x in oldref for x in newref)
+
+        return len(oldrefs) == len(newrefs) and all(any(ref_equal(oldref, newref) for oldref in oldrefs) for newref in newrefs)
+
+    def get_sparql_value(self) -> str:
+        pass
diff --git a/wikibaseintegrator/models/claims.py b/wikibaseintegrator/models/claims.py
index 2049485c..844f4c00 100644
--- a/wikibaseintegrator/models/claims.py
+++ b/wikibaseintegrator/models/claims.py
@@ -1,13 +1,10 @@
 from __future__ import annotations
 
-import copy
-from typing import Any, Callable, Dict, List, Optional, Union
+from typing import Any, Dict, List, Union
 
 from wikibaseintegrator.models.basemodel import BaseModel
-from wikibaseintegrator.models.qualifiers import Qualifiers
-from wikibaseintegrator.models.references import Reference, References
-from wikibaseintegrator.models.snaks import Snak, Snaks
-from wikibaseintegrator.wbi_enums import ActionIfExists, WikibaseRank
+from wikibaseintegrator.models.claim import Claim
+from wikibaseintegrator.wbi_enums import ActionIfExists
 
 
 class Claims(BaseModel):
@@ -125,242 +122,3 @@ def __iter__(self):
         for claim in self.claims.values():
             iterate.extend(claim)
         return iter(iterate)
-
-
-class Claim(BaseModel):
-    DTYPE = 'claim'
-
-    def __init__(self, qualifiers: Qualifiers = None, rank: WikibaseRank = None, references: Union[References, List[Union[Claim, List[Claim]]]] = None) -> None:
-        """
-
-        :param qualifiers:
-        :param rank:
-        :param references: A References object, a list of Claim object or a list of list of Claim object
-        """
-        self.mainsnak = Snak(datatype=self.DTYPE)
-        self.type = 'statement'
-        self.qualifiers = qualifiers or Qualifiers()
-        self.qualifiers_order = []
-        self.id = None
-        self.rank = rank or WikibaseRank.NORMAL
-        self.removed = False
-
-        self.references = References()
-
-        if isinstance(references, References):
-            self.references = references
-        elif isinstance(references, list):
-            for ref_list in references:
-                ref = Reference()
-                if isinstance(ref_list, list):
-                    snaks = Snaks()
-                    for ref_claim in ref_list:
-                        if isinstance(ref_claim, Claim):
-                            snaks.add(Snak().from_json(ref_claim.get_json()['mainsnak']))
-                        else:
-                            raise ValueError("The references must be a References object or a list of Claim object")
-                    ref.snaks = snaks
-                elif isinstance(ref_list, Claim):
-                    ref.snaks = Snaks().add(Snak().from_json(ref_list.get_json()['mainsnak']))
-                elif isinstance(ref_list, Reference):
-                    ref = ref_list
-                self.references.add(reference=ref)
-        elif references is not None:
-            raise ValueError("The references must be a References object or a list of Claim object")
-
-    @property
-    def mainsnak(self) -> Snak:
-        return self.__mainsnak
-
-    @mainsnak.setter
-    def mainsnak(self, value: Snak):
-        self.__mainsnak = value
-
-    @property
-    def type(self) -> Union[str, Dict]:
-        return self.__type
-
-    @type.setter
-    def type(self, value: Union[str, Dict]):
-        self.__type = value
-
-    @property
-    def qualifiers(self) -> Qualifiers:
-        return self.__qualifiers
-
-    @qualifiers.setter
-    def qualifiers(self, value: Qualifiers) -> None:
-        assert isinstance(value, (Qualifiers, list))
-        self.__qualifiers: Qualifiers = Qualifiers().set(value) if isinstance(value, list) else value
-
-    @property
-    def qualifiers_order(self) -> List[str]:
-        return self.__qualifiers_order
-
-    @qualifiers_order.setter
-    def qualifiers_order(self, value: List[str]):
-        self.__qualifiers_order = value
-
-    @property
-    def id(self) -> Optional[str]:
-        return self.__id
-
-    @id.setter
-    def id(self, value: Optional[str]):
-        self.__id = value
-
-    @property
-    def rank(self) -> WikibaseRank:
-        return self.__rank
-
-    @rank.setter
-    def rank(self, value: WikibaseRank):
-        """Parse the rank. The enum thows an error if it is not one of the recognized values"""
-        self.__rank = WikibaseRank(value)
-
-    @property
-    def references(self) -> References:
-        return self.__references
-
-    @references.setter
-    def references(self, value: References):
-        self.__references = value
-
-    @property
-    def removed(self) -> bool:
-        return self.__removed
-
-    @removed.setter
-    def removed(self, value: bool):
-        self.__removed = value
-
-    def remove(self, remove=True) -> None:
-        self.removed = remove
-
-    def update(self, claim: Claim) -> None:
-        self.mainsnak = claim.mainsnak
-        self.qualifiers = claim.qualifiers
-        self.qualifiers_order = claim.qualifiers_order
-        self.rank = claim.rank
-        self.references = claim.references
-
-    def from_json(self, json_data: Dict[str, Any]) -> Claim:
-        """
-
-        :param json_data: a JSON representation of a Claim
-        """
-        self.mainsnak = Snak().from_json(json_data['mainsnak'])
-        self.type = str(json_data['type'])
-        if 'qualifiers' in json_data:
-            self.qualifiers = Qualifiers().from_json(json_data['qualifiers'])
-        if 'qualifiers-order' in json_data:
-            self.qualifiers_order = list(json_data['qualifiers-order'])
-        self.id = str(json_data['id'])
-        self.rank: WikibaseRank = WikibaseRank(json_data['rank'])
-        if 'references' in json_data:
-            self.references = References().from_json(json_data['references'])
-
-        return self
-
-    def get_json(self) -> Dict[str, Any]:
-        json_data: Dict[str, Union[str, List[Dict], List[str], Dict[str, str], Dict[str, List], None]] = {
-            'mainsnak': self.mainsnak.get_json(),
-            'type': self.type,
-            'id': self.id,
-            'rank': self.rank.value
-        }
-        # Remove id if it's a temporary one
-        if not self.id:
-            del json_data['id']
-        if len(self.qualifiers) > 0:
-            json_data['qualifiers'] = self.qualifiers.get_json()
-            json_data['qualifiers-order'] = list(self.qualifiers_order)
-        if len(self.references) > 0:
-            json_data['references'] = self.references.get_json()
-        if self.removed:
-            if self.id:
-                json_data['remove'] = ''
-        return json_data
-
-    def has_equal_qualifiers(self, other: Claim) -> bool:
-        # check if the qualifiers are equal with the 'other' object
-        self_qualifiers = copy.deepcopy(self.qualifiers)
-        other_qualifiers = copy.deepcopy(other.qualifiers)
-
-        if len(self_qualifiers) != len(other_qualifiers):
-            return False
-
-        for property_number in self_qualifiers.qualifiers:
-            if property_number not in other_qualifiers.qualifiers:
-                return False
-
-            if len(self_qualifiers.qualifiers[property_number]) != len(other_qualifiers.qualifiers[property_number]):
-                return False
-
-            flg = [False for _ in range(len(self_qualifiers.qualifiers[property_number]))]
-            for count, i in enumerate(self_qualifiers.qualifiers[property_number]):
-                for q in other_qualifiers:
-                    if i == q:
-                        flg[count] = True
-            if not all(flg):
-                return False
-
-        return True
-
-    # TODO: rewrite this?
-    def __contains__(self, item):
-        if isinstance(item, Claim):
-            return self == item
-
-        if isinstance(item, str):
-            return self.mainsnak.datavalue == item
-
-        return super().__contains__(item)
-
-    def __eq__(self, other):
-        if isinstance(other, Claim):
-            return self.mainsnak.datavalue == other.mainsnak.datavalue and self.mainsnak.property_number == other.mainsnak.property_number and self.has_equal_qualifiers(other)
-
-        if isinstance(other, str):
-            return self.mainsnak.property_number == other
-
-        raise super().__eq__(other)
-
-    def equals(self, that: Claim, include_ref: bool = False, fref: Callable = None) -> bool:
-        """
-        Tests for equality of two statements.
-        If comparing references, the order of the arguments matters!!!
-        self is the current statement, the next argument is the new statement.
-        Allows passing in a function to use to compare the references 'fref'. Default is equality.
-        fref accepts two arguments 'oldrefs' and 'newrefs', each of which are a list of references,
-        where each reference is a list of statements
-        """
-
-        if not include_ref:
-            # return the result of BaseDataType.__eq__, which is testing for equality of value and qualifiers
-            return self == that
-
-        if self != that:
-            return False
-
-        if fref is None:
-            return Claim.refs_equal(self, that)
-
-        return fref(self, that)
-
-    @staticmethod
-    def refs_equal(olditem: Claim, newitem: Claim) -> bool:
-        """
-        tests for exactly identical references
-        """
-
-        oldrefs = olditem.references
-        newrefs = newitem.references
-
-        def ref_equal(oldref: References, newref: References) -> bool:
-            return (len(oldref) == len(newref)) and all(x in oldref for x in newref)
-
-        return len(oldrefs) == len(newrefs) and all(any(ref_equal(oldref, newref) for oldref in oldrefs) for newref in newrefs)
-
-    def get_sparql_value(self) -> str:
-        pass
diff --git a/wikibaseintegrator/models/descriptions.py b/wikibaseintegrator/models/descriptions.py
index 872e730c..bb888ea1 100644
--- a/wikibaseintegrator/models/descriptions.py
+++ b/wikibaseintegrator/models/descriptions.py
@@ -2,7 +2,8 @@
 
 from typing import Dict
 
-from wikibaseintegrator.models.language_values import LanguageValue, LanguageValues
+from wikibaseintegrator.models.language_value import LanguageValue
+from wikibaseintegrator.models.language_values import LanguageValues
 
 
 class Descriptions(LanguageValues):
diff --git a/wikibaseintegrator/models/form.py b/wikibaseintegrator/models/form.py
new file mode 100644
index 00000000..84737667
--- /dev/null
+++ b/wikibaseintegrator/models/form.py
@@ -0,0 +1,80 @@
+from __future__ import annotations
+
+from typing import Any, Dict, List, Union
+
+from wikibaseintegrator.models.basemodel import BaseModel
+from wikibaseintegrator.models.claims import Claims
+from wikibaseintegrator.models.language_values import LanguageValues
+from wikibaseintegrator.models.representations import Representations
+
+
+class Form(BaseModel):
+    def __init__(self, form_id: str = None, representations: Representations = None, grammatical_features: Union[str, int, List[str]] = None, claims: Claims = None):
+        self.id = form_id
+        self.representations: Representations = representations or LanguageValues()
+        self.grammatical_features = grammatical_features or []
+        self.claims = claims or Claims()
+
+    @property
+    def id(self):
+        return self.__id
+
+    @id.setter
+    def id(self, value):
+        self.__id = value
+
+    @property
+    def representations(self):
+        return self.__representations
+
+    @representations.setter
+    def representations(self, value):
+        self.__representations = value
+
+    @property
+    def grammatical_features(self):
+        return self.__grammatical_features
+
+    @grammatical_features.setter
+    def grammatical_features(self, value: Union[str, int, List[str]]):
+        if not hasattr(self, '__grammatical_features') or value is None:
+            self.__grammatical_features = []
+
+        if isinstance(value, int):
+            self.__grammatical_features.append('Q' + str(value))
+        elif isinstance(value, str):
+            self.__grammatical_features.append(value)
+        elif isinstance(value, list):
+            self.__grammatical_features = value
+        else:
+            raise TypeError(f"value must be a str, an int or a list of strings, got '{type(value)}'")
+
+    @property
+    def claims(self):
+        return self.__claims
+
+    @claims.setter
+    def claims(self, value):
+        self.__claims = value
+
+    def from_json(self, json_data: Dict[str, Any]) -> Form:
+        self.id = json_data['id']
+        self.representations = Representations().from_json(json_data['representations'])
+        self.grammatical_features = json_data['grammaticalFeatures']
+        self.claims = Claims().from_json(json_data['claims'])
+
+        return self
+
+    def get_json(self) -> Dict[str, Union[str, Dict, List]]:
+        json_data: Dict[str, Union[str, Dict, List]] = {
+            'id': self.id,
+            'representations': self.representations.get_json(),
+            'grammaticalFeatures': self.grammatical_features,
+            'claims': self.claims.get_json()
+        }
+
+        if self.id is None:
+            json_data['add'] = ''
+            del json_data['id']
+
+        return json_data
diff --git a/wikibaseintegrator/models/forms.py b/wikibaseintegrator/models/forms.py
index eb90dbd7..538c0804 100644
--- a/wikibaseintegrator/models/forms.py
+++ b/wikibaseintegrator/models/forms.py
@@ -1,10 +1,9 @@
 from __future__ import annotations
 
-from typing import Any, Dict, List, Union
+from typing import Dict, List
 
 from wikibaseintegrator.models.basemodel import BaseModel
-from wikibaseintegrator.models.claims import Claims
-from wikibaseintegrator.models.language_values import LanguageValues
+from wikibaseintegrator.models.form import Form
 
 
 class Forms(BaseModel):
@@ -39,79 +38,3 @@ def get_json(self) -> List[Dict]:
             json_data.append(form.get_json())
 
         return json_data
-
-
-class Form(BaseModel):
-    def __init__(self, form_id: str = None, representations: Representations = None, grammatical_features: Union[str, int, List[str]] = None, claims: Claims = None):
-        self.id = form_id
-        self.representations: Representations = representations or LanguageValues()
-        self.grammatical_features = grammatical_features or []
-        self.claims = claims or Claims()
-
-    @property
-    def id(self):
-        return self.__id
-
-    @id.setter
-    def id(self, value):
-        self.__id = value
-
-    @property
-    def representations(self):
-        return self.__representations
-
-    @representations.setter
-    def representations(self, value):
-        self.__representations = value
-
-    @property
-    def grammatical_features(self):
-        return self.__grammatical_features
-
-    @grammatical_features.setter
-    def grammatical_features(self, value: Union[str, int, List[str]]):
-        if not hasattr(self, '__grammatical_features') or value is None:
-            self.__grammatical_features = []
-
-        if isinstance(value, int):
-            self.__grammatical_features.append('Q' + str(value))
-        elif isinstance(value, str):
-            self.__grammatical_features.append(value)
-        elif isinstance(value, list):
-            self.__grammatical_features = value
-        else:
-            raise TypeError(f"value must be a str, an int or a list of strings, got '{type(value)}'")
-
-    @property
-    def claims(self):
-        return self.__claims
-
-    @claims.setter
-    def claims(self, value):
-        self.__claims = value
-
-    def from_json(self, json_data: Dict[str, Any]) -> Form:
-        self.id = json_data['id']
-        self.representations = Representations().from_json(json_data['representations'])
-        self.grammatical_features = json_data['grammaticalFeatures']
-        self.claims = Claims().from_json(json_data['claims'])
-
-        return self
-
-    def get_json(self) -> Dict[str, Union[str, Dict, List]]:
-        json_data: Dict[str, Union[str, Dict, List]] = {
-            'id': self.id,
-            'representations': self.representations.get_json(),
-            'grammaticalFeatures': self.grammatical_features,
-            'claims': self.claims.get_json()
-        }
-
-        if self.id is None:
-            json_data['add'] = ''
-            del json_data['id']
-
-        return json_data
-
-
-class Representations(LanguageValues):
-    pass
diff --git a/wikibaseintegrator/models/glosses.py b/wikibaseintegrator/models/glosses.py
new file mode 100644
index 00000000..54fa1fc7
--- /dev/null
+++ b/wikibaseintegrator/models/glosses.py
@@ -0,0 +1,5 @@
+from wikibaseintegrator.models.language_values import LanguageValues
+
+
+class Glosses(LanguageValues):
+    pass
diff --git a/wikibaseintegrator/models/labels.py b/wikibaseintegrator/models/labels.py
index 6c186446..9c300d84 100644
--- a/wikibaseintegrator/models/labels.py
+++ b/wikibaseintegrator/models/labels.py
@@ -2,7 +2,8 @@
 
 from typing import Dict
 
-from wikibaseintegrator.models.language_values import LanguageValue, LanguageValues
+from wikibaseintegrator.models.language_value import LanguageValue
+from wikibaseintegrator.models.language_values import LanguageValues
 
 
 class Labels(LanguageValues):
diff --git a/wikibaseintegrator/models/language_value.py b/wikibaseintegrator/models/language_value.py
new file mode 100644
index 00000000..e6fd2efa
--- /dev/null
+++ b/wikibaseintegrator/models/language_value.py
@@ -0,0 +1,84 @@
+from __future__ import annotations
+
+from typing import Dict, Optional
+
+from wikibaseintegrator.models.basemodel import BaseModel
+
+
+class LanguageValue(BaseModel):
+    def __init__(self, language: str, value: str = None):
+        self.language = language
+        self.value = value
+        self.removed = False
+
+    @property
+    def language(self) -> str:
+        return self.__language
+
+    @language.setter
+    def language(self, value: Optional[str]):
+        if value is None:
+            raise ValueError("language can't be None")
+
+        if value == '':
+            raise ValueError("language can't be empty")
+
+        if not isinstance(value, str):
+            raise ValueError("language must be a str")
+
+        self.__language = value
+
+    @property
+    def value(self) -> Optional[str]:
+        """
+        The value of the LanguageValue instance.
+        :return: A string with the value of the LanguageValue instance.
+        """
+        return self.__value
+
+    @value.setter
+    def value(self, value: Optional[str]):
+        self.__value = value
+
+    @property
+    def removed(self) -> bool:
+        return self.__removed
+
+    @removed.setter
+    def removed(self, value: bool):
+        self.__removed = value
+
+    def remove(self) -> LanguageValue:
+        self.removed = True
+
+        return self
+
+    def from_json(self, json_data: Dict[str, str]) -> LanguageValue:
+        self.language = json_data['language']
+        self.value = json_data['value']
+
+        return self
+
+    def get_json(self) -> Dict[str, Optional[str]]:
+        json_data = {
+            'language': self.language,
+            'value': self.value
+        }
+        if self.removed:
+            json_data['remove'] = ''
+        return json_data
+
+    def __contains__(self, item):
+        return item in self.value
+
+    def __eq__(self, other):
+        if isinstance(other, LanguageValue):
+            return self.value == other.value and self.language == other.language
+
+        return self.value == other
+
+    def __len__(self):
+        return len(self.value)
+
+    def __str__(self):
+        return self.value
diff --git a/wikibaseintegrator/models/language_values.py b/wikibaseintegrator/models/language_values.py
index b83dd2ea..c42f57a3 100644
--- a/wikibaseintegrator/models/language_values.py
+++ b/wikibaseintegrator/models/language_values.py
@@ -3,6 +3,7 @@
 from typing import Dict, Optional
 
 from wikibaseintegrator.models.basemodel import BaseModel
+from wikibaseintegrator.models.language_value import LanguageValue
 from wikibaseintegrator.wbi_config import config
 from wikibaseintegrator.wbi_enums import ActionIfExists
 
@@ -103,82 +104,3 @@ def __contains__(self, language: str) -> bool:
 
     def __iter__(self):
         return iter(self.values.values())
-
-
-class LanguageValue(BaseModel):
-    def __init__(self, language: str, value: str = None):
-        self.language = language
-        self.value = value
-        self.removed = False
-
-    @property
-    def language(self) -> str:
-        return self.__language
-
-    @language.setter
-    def language(self, value: Optional[str]):
-        if value is None:
-            raise ValueError("language can't be None")
-
-        if value == '':
-            raise ValueError("language can't be empty")
-
-        if not isinstance(value, str):
-            raise ValueError("language must be a str")
-
-        self.__language = value
-
-    @property
-    def value(self) -> Optional[str]:
-        """
-        The value of the LanguageValue instance.
-        :return: A string with the value of the LanguageValue instance.
-        """
-        return self.__value
-
-    @value.setter
-    def value(self, value: Optional[str]):
-        self.__value = value
-
-    @property
-    def removed(self) -> bool:
-        return self.__removed
-
-    @removed.setter
-    def removed(self, value: bool):
-        self.__removed = value
-
-    def remove(self) -> LanguageValue:
-        self.removed = True
-
-        return self
-
-    def from_json(self, json_data: Dict[str, str]) -> LanguageValue:
-        self.language = json_data['language']
-        self.value = json_data['value']
-
-        return self
-
-    def get_json(self) -> Dict[str, Optional[str]]:
-        json_data = {
-            'language': self.language,
-            'value': self.value
-        }
-        if self.removed:
-            json_data['remove'] = ''
-        return json_data
-
-    def __contains__(self, item):
-        return item in self.value
-
-    def __eq__(self, other):
-        if isinstance(other, LanguageValue):
-            return self.value == other.value and self.language == other.language
-
-        return self.value == other
-
-    def __len__(self):
-        return len(self.value)
-
-    def __str__(self):
-        return self.value
diff --git a/wikibaseintegrator/models/lemmas.py b/wikibaseintegrator/models/lemmas.py
index 01a9b268..0ec6e719 100644
--- a/wikibaseintegrator/models/lemmas.py
+++ b/wikibaseintegrator/models/lemmas.py
@@ -2,7 +2,8 @@
 
 from typing import Dict
 
-from wikibaseintegrator.models.language_values import LanguageValue, LanguageValues
+from wikibaseintegrator.models.language_value import LanguageValue
+from wikibaseintegrator.models.language_values import LanguageValues
 
 
 class Lemmas(LanguageValues):
diff --git a/wikibaseintegrator/models/qualifiers.py b/wikibaseintegrator/models/qualifiers.py
index dcd50670..74e2e277 100644
--- a/wikibaseintegrator/models/qualifiers.py
+++ b/wikibaseintegrator/models/qualifiers.py
@@ -3,11 +3,11 @@
 from typing import TYPE_CHECKING, Dict, List, Union
 
 from wikibaseintegrator.models.basemodel import BaseModel
-from wikibaseintegrator.models.snaks import Snak
+from wikibaseintegrator.models.snak import Snak
 from wikibaseintegrator.wbi_enums import ActionIfExists
 
 if TYPE_CHECKING:
-    from wikibaseintegrator.models.claims import Claim
+    from wikibaseintegrator.models.claim import Claim
 
 
 class Qualifiers(BaseModel):
diff --git a/wikibaseintegrator/models/reference.py b/wikibaseintegrator/models/reference.py
new file mode 100644
index 00000000..d178c0c7
--- /dev/null
+++ b/wikibaseintegrator/models/reference.py
@@ -0,0 +1,75 @@
+from __future__ import annotations
+
+from typing import TYPE_CHECKING, Any, Dict, List, Union
+
+from wikibaseintegrator.models.basemodel import BaseModel
+from wikibaseintegrator.models.snak import Snak
+from wikibaseintegrator.models.snaks import Snaks
+from wikibaseintegrator.wbi_enums import ActionIfExists
+
+if TYPE_CHECKING:
+    from wikibaseintegrator.models.claim import Claim
+
+
+class Reference(BaseModel):
+    def __init__(self, snaks: Snaks = None, snaks_order: List = None):
+        self.hash = None
+        self.snaks = snaks or Snaks()
+        self.snaks_order = snaks_order or []
+
+    @property
+    def hash(self):
+        return self.__hash
+
+    @hash.setter
+    def hash(self, value):
+        self.__hash = value
+
+    @property
+    def snaks(self):
+        return self.__snaks
+
+    @snaks.setter
+    def snaks(self, value):
+        self.__snaks = value
+
+    @property
+    def snaks_order(self):
+        return self.__snaks_order
+
+    @snaks_order.setter
+    def snaks_order(self, value):
+        self.__snaks_order = value
+
+    # TODO: implement action_if_exists
+    def add(self, snak: Union[Snak, Claim] = None, action_if_exists: ActionIfExists = ActionIfExists.REPLACE_ALL) -> Reference:
+        from wikibaseintegrator.models.claims import Claim
+        if isinstance(snak, Claim):
+            snak = Snak().from_json(snak.get_json()['mainsnak'])
+
+        if snak is not None:
+            assert isinstance(snak, Snak)
+
+        self.snaks.add(snak)
+
+        return self
+
+    def from_json(self, json_data: Dict[str, Any]) -> Reference:
+        self.hash = json_data['hash']
+        self.snaks = Snaks().from_json(json_data['snaks'])
+        self.snaks_order = json_data['snaks-order']
+
+        return self
+
+    def get_json(self) -> Dict[str, Union[Dict, List]]:
+        json_data: Dict[str, Union[Dict, List]] = {
+            'snaks': self.snaks.get_json(),
+            'snaks-order': self.snaks_order
+        }
+        return json_data
+
+    def __iter__(self):
+        return iter(self.snaks)
+
+    def __len__(self):
+        return len(self.snaks)
diff --git a/wikibaseintegrator/models/references.py b/wikibaseintegrator/models/references.py
index 3869c6b5..da532dec 100644
--- a/wikibaseintegrator/models/references.py
+++ b/wikibaseintegrator/models/references.py
@@ -1,13 +1,15 @@
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, Any, Dict, List, Optional, Union
+from typing import TYPE_CHECKING, Dict, List, Optional, Union
 
 from wikibaseintegrator.models.basemodel import BaseModel
-from wikibaseintegrator.models.snaks import Snak, Snaks
+from wikibaseintegrator.models.reference import Reference
+from wikibaseintegrator.models.snak import Snak
+from wikibaseintegrator.models.snaks import Snaks
 from wikibaseintegrator.wbi_enums import ActionIfExists
 
 if TYPE_CHECKING:
-    from wikibaseintegrator.models.claims import Claim
+    from wikibaseintegrator.models.claim import Claim
 
 
 class References(BaseModel):
@@ -77,67 +79,3 @@ def __iter__(self):
 
     def __len__(self):
         return len(self.references)
-
-
-class Reference(BaseModel):
-    def __init__(self, snaks: Snaks = None, snaks_order: List = None):
-        self.hash = None
-        self.snaks = snaks or Snaks()
-        self.snaks_order = snaks_order or []
-
-    @property
-    def hash(self):
-        return self.__hash
-
-    @hash.setter
-    def hash(self, value):
-        self.__hash = value
-
-    @property
-    def snaks(self):
-        return self.__snaks
-
-    @snaks.setter
-    def snaks(self, value):
-        self.__snaks = value
-
-    @property
-    def snaks_order(self):
-        return self.__snaks_order
-
-    @snaks_order.setter
-    def snaks_order(self, value):
-        self.__snaks_order = value
-
-    # TODO: implement action_if_exists
-    def add(self, snak: Union[Snak, Claim] = None, action_if_exists: ActionIfExists = ActionIfExists.REPLACE_ALL) -> Reference:
-        from wikibaseintegrator.models.claims import Claim
-        if isinstance(snak, Claim):
-            snak = Snak().from_json(snak.get_json()['mainsnak'])
-
-        if snak is not None:
-            assert isinstance(snak, Snak)
-
-        self.snaks.add(snak)
-
-        return self
-
-    def from_json(self, json_data: Dict[str, Any]) -> Reference:
-        self.hash = json_data['hash']
-        self.snaks = Snaks().from_json(json_data['snaks'])
-        self.snaks_order = json_data['snaks-order']
-
-        return self
-
-    def get_json(self) -> Dict[str, Union[Dict, List]]:
-        json_data: Dict[str, Union[Dict, List]] = {
-            'snaks': self.snaks.get_json(),
-            'snaks-order': self.snaks_order
-        }
-        return json_data
-
-    def __iter__(self):
-        return iter(self.snaks)
-
-    def __len__(self):
-        return len(self.snaks)
diff --git a/wikibaseintegrator/models/representations.py b/wikibaseintegrator/models/representations.py
new file mode 100644
index 00000000..d9ccfbcf
--- /dev/null
+++ b/wikibaseintegrator/models/representations.py
@@ -0,0 +1,5 @@
+from wikibaseintegrator.models.language_values import LanguageValues
+
+
+class Representations(LanguageValues):
+    pass
diff --git a/wikibaseintegrator/models/sense.py b/wikibaseintegrator/models/sense.py
new file mode 100644
index 00000000..8bbd852c
--- /dev/null
+++ b/wikibaseintegrator/models/sense.py
@@ -0,0 +1,43 @@
+from __future__ import annotations
+
+from typing import Any, Dict, Union
+
+from wikibaseintegrator.models.basemodel import BaseModel
+from wikibaseintegrator.models.claims import Claims
+from wikibaseintegrator.models.glosses import Glosses
+from wikibaseintegrator.models.language_values import LanguageValues
+
+
+class Sense(BaseModel):
+    def __init__(self, sense_id: str = None, glosses: Glosses = None, claims: Claims = None):
+        self.id = sense_id
+        self.glosses: LanguageValues = glosses or Glosses()
+        self.claims = claims or Claims()
+        self.removed = False
+
+    def from_json(self, json_data: Dict[str, Any]) -> Sense:
+        self.id = json_data['id']
+        self.glosses = Glosses().from_json(json_data['glosses'])
+        self.claims = Claims().from_json(json_data['claims'])
+
+        return self
+
+    def get_json(self) -> Dict[str, Union[str, Dict]]:
+        json_data: Dict[str, Union[str, Dict]] = {
+            'id': str(self.id),
+            'glosses': self.glosses.get_json(),
+            'claims': self.claims.get_json()
+        }
+
+        if self.id is None:
+            json_data['add'] = ''
+            del json_data['id']
+
+        if self.removed:
+            json_data['remove'] = ''
+
+        return json_data
+
+    def remove(self) -> Sense:
+        self.removed = True
+        return self
diff --git a/wikibaseintegrator/models/senses.py b/wikibaseintegrator/models/senses.py
index 5a8cbb0a..cb054e1a 100644
--- a/wikibaseintegrator/models/senses.py
+++ b/wikibaseintegrator/models/senses.py
@@ -1,10 +1,9 @@
 from __future__ import annotations
 
-from typing import Any, Dict, List, Optional, Union
+from typing import Dict, List, Optional
 
 from wikibaseintegrator.models.basemodel import BaseModel
-from wikibaseintegrator.models.claims import Claims
-from wikibaseintegrator.models.language_values import LanguageValues
+from wikibaseintegrator.models.sense import Sense
 from wikibaseintegrator.wbi_enums import ActionIfExists
 
 
@@ -36,42 +35,3 @@ def get_json(self) -> List[Dict]:
             json_data.append(sense.get_json())
 
         return json_data
-
-
-class Sense(BaseModel):
-    def __init__(self, sense_id: str = None, glosses: Glosses = None, claims: Claims = None):
-        self.id = sense_id
-        self.glosses: LanguageValues = glosses or Glosses()
-        self.claims = claims or Claims()
-        self.removed = False
-
-    def from_json(self, json_data: Dict[str, Any]) -> Sense:
-        self.id = json_data['id']
-        self.glosses = Glosses().from_json(json_data['glosses'])
-        self.claims = Claims().from_json(json_data['claims'])
-
-        return self
-
-    def get_json(self) -> Dict[str, Union[str, Dict]]:
-        json_data: Dict[str, Union[str, Dict]] = {
-            'id': str(self.id),
-            'glosses': self.glosses.get_json(),
-            'claims': self.claims.get_json()
-        }
-
-        if self.id is None:
-            json_data['add'] = ''
-            del json_data['id']
-
-        if self.removed:
-            json_data['remove'] = ''
-
-        return json_data
-
-    def remove(self) -> Sense:
-        self.removed = True
-        return self
-
-
-class Glosses(LanguageValues):
-    pass
diff --git a/wikibaseintegrator/models/sitelink.py b/wikibaseintegrator/models/sitelink.py
new file mode 100644
index 00000000..89989ed7
--- /dev/null
+++ b/wikibaseintegrator/models/sitelink.py
@@ -0,0 +1,15 @@
+from __future__ import annotations
+
+from typing import List
+
+from wikibaseintegrator.models.basemodel import BaseModel
+
+
+class Sitelink(BaseModel):
+    def __init__(self, site: str = None, title: str = None, badges: List[str] = None):
+        self.site = site
+        self.title = title
+        self.badges: List[str] = badges or []
+
+    def __str__(self):
+        return self.title
diff --git a/wikibaseintegrator/models/sitelinks.py b/wikibaseintegrator/models/sitelinks.py
index e833c44c..66f7a876 100644
--- a/wikibaseintegrator/models/sitelinks.py
+++ b/wikibaseintegrator/models/sitelinks.py
@@ -3,6 +3,7 @@
 from typing import Dict, List, Optional
 
 from wikibaseintegrator.models.basemodel import BaseModel
+from wikibaseintegrator.models.sitelink import Sitelink
 
 
 class Sitelinks(BaseModel):
@@ -25,13 +26,3 @@ def from_json(self, json_data: Dict[str, Dict]) -> Sitelinks:
             self.set(site=json_data[sitelink]['site'], title=json_data[sitelink]['title'], badges=json_data[sitelink]['badges'])
 
         return self
-
-
-class Sitelink(BaseModel):
-    def __init__(self, site: str = None, title: str = None, badges: List[str] = None):
-        self.site = site
-        self.title = title
-        self.badges: List[str] = badges or []
-
-    def __str__(self):
-        return self.title
diff --git a/wikibaseintegrator/models/snak.py b/wikibaseintegrator/models/snak.py
new file mode 100644
index 00000000..59a70247
--- /dev/null
+++ b/wikibaseintegrator/models/snak.py
@@ -0,0 +1,101 @@
+from __future__ import annotations
+
+import re
+from typing import Any, Dict
+
+from wikibaseintegrator.models.basemodel import BaseModel
+from wikibaseintegrator.wbi_enums import WikibaseSnakType
+
+
+class Snak(BaseModel):
+    def __init__(self, snaktype: WikibaseSnakType = WikibaseSnakType.KNOWN_VALUE, property_number: str = None, hash: str = None, datavalue: Dict = None, datatype: str = None):
+        self.snaktype = snaktype
+        self.property_number = property_number
+        self.hash = hash
+        self.datavalue = datavalue or {}
+        self.datatype = datatype
+
+    @property
+    def snaktype(self):
+        return self.__snaktype
+
+    @snaktype.setter
+    def snaktype(self, value: WikibaseSnakType):
+        """Parse the snaktype. The enum thows an error if it is not one of the recognized values"""
+        self.__snaktype = WikibaseSnakType(value)
+
+    @property
+    def property_number(self):
+        return self.__property_number
+
+    @property_number.setter
+    def property_number(self, value):
+        if isinstance(value, int):
+            self.__property_number = 'P' + str(value)
+        elif value is not None:
+            pattern = re.compile(r'^P?([0-9]+)$')
+            matches = pattern.match(value)
+
+            if not matches:
+                raise ValueError('Invalid property_number, format must be "P[0-9]+"')
+
+            self.__property_number = 'P' + str(matches.group(1))
+        else:
+            self.__property_number = value
+
+    @property
+    def hash(self):
+        return self.__hash
+
+    @hash.setter
+    def hash(self, value):
+        self.__hash = value
+
+    @property
+    def datavalue(self):
+        return self.__datavalue
+
+    @datavalue.setter
+    def datavalue(self, value):
+        if value is not None:
+            self.snaktype = WikibaseSnakType.KNOWN_VALUE
+        self.__datavalue = value
+
+    @property
+    def datatype(self):
+        return self.__datatype
+
+    @datatype.setter
+    def datatype(self, value):
+        self.__datatype = value
+
+    def from_json(self, json_data: Dict[str, Any]) -> Snak:
+        self.snaktype: WikibaseSnakType = WikibaseSnakType(json_data['snaktype'])
+        self.property_number = json_data['property']
+        if 'hash' in json_data:
+            self.hash = json_data['hash']
+        if 'datavalue' in json_data:
+            self.datavalue = json_data['datavalue']
+        if 'datatype' in json_data:  # datatype can be null with MediaInfo
+            self.datatype = json_data['datatype']
+        return self
+
+    def get_json(self) -> Dict[str, str]:
+        json_data = {
+            'snaktype': self.snaktype.value,
+            'property': self.property_number,
+            'datatype': self.datatype,
+            'datavalue': self.datavalue
+        }
+
+        if self.snaktype in [WikibaseSnakType.NO_VALUE, WikibaseSnakType.UNKNOWN_VALUE]:
+            del json_data['datavalue']
+
+        # datatype can be null with MediaInfo
+        if not self.datatype:
+            del json_data['datatype']
+
+        return json_data
+
+    def __eq__(self, other):
+        return self.snaktype == other.snaktype and self.property_number == other.property_number and self.datatype == other.datatype and self.datavalue == other.datavalue
diff --git a/wikibaseintegrator/models/snaks.py b/wikibaseintegrator/models/snaks.py
index eceaaef8..26eb0c2a 100644
--- a/wikibaseintegrator/models/snaks.py
+++ b/wikibaseintegrator/models/snaks.py
@@ -1,10 +1,9 @@
 from __future__ import annotations
 
-import re
-from typing import Any, Dict, List
+from typing import Dict, List
 
 from wikibaseintegrator.models.basemodel import BaseModel
-from wikibaseintegrator.wbi_enums import WikibaseSnakType
+from wikibaseintegrator.models.snak import Snak
 
 
 class Snaks(BaseModel):
@@ -48,97 +47,3 @@ def __iter__(self):
 
     def __len__(self):
         return len(self.snaks)
-
-
-class Snak(BaseModel):
-    def __init__(self, snaktype: WikibaseSnakType = WikibaseSnakType.KNOWN_VALUE, property_number: str = None, hash: str = None, datavalue: Dict = None, datatype: str = None):
-        self.snaktype = snaktype
-        self.property_number = property_number
-        self.hash = hash
-        self.datavalue = datavalue or {}
-        self.datatype = datatype
-
-    @property
-    def snaktype(self):
-        return self.__snaktype
-
-    @snaktype.setter
-    def snaktype(self, value: WikibaseSnakType):
-        """Parse the snaktype. The enum thows an error if it is not one of the recognized values"""
-        self.__snaktype = WikibaseSnakType(value)
-
-    @property
-    def property_number(self):
-        return self.__property_number
-
-    @property_number.setter
-    def property_number(self, value):
-        if isinstance(value, int):
-            self.__property_number = 'P' + str(value)
-        elif value is not None:
-            pattern = re.compile(r'^P?([0-9]+)$')
-            matches = pattern.match(value)
-
-            if not matches:
-                raise ValueError('Invalid property_number, format must be "P[0-9]+"')
-
-            self.__property_number = 'P' + str(matches.group(1))
-        else:
-            self.__property_number = value
-
-    @property
-    def hash(self):
-        return self.__hash
-
-    @hash.setter
-    def hash(self, value):
-        self.__hash = value
-
-    @property
-    def datavalue(self):
-        return self.__datavalue
-
-    @datavalue.setter
-    def datavalue(self, value):
-        if value is not None:
-            self.snaktype = WikibaseSnakType.KNOWN_VALUE
-        self.__datavalue = value
-
-    @property
-    def datatype(self):
-        return self.__datatype
-
-    @datatype.setter
-    def datatype(self, value):
-        self.__datatype = value
-
-    def from_json(self, json_data: Dict[str, Any]) -> Snak:
-        self.snaktype: WikibaseSnakType = WikibaseSnakType(json_data['snaktype'])
-        self.property_number = json_data['property']
-        if 'hash' in json_data:
-            self.hash = json_data['hash']
-        if 'datavalue' in json_data:
-            self.datavalue = json_data['datavalue']
-        if 'datatype' in json_data:  # datatype can be null with MediaInfo
-            self.datatype = json_data['datatype']
-        return self
-
-    def get_json(self) -> Dict[str, str]:
-        json_data = {
-            'snaktype': self.snaktype.value,
-            'property': self.property_number,
-            'datatype': self.datatype,
-            'datavalue': self.datavalue
-        }
-
-        if self.snaktype in [WikibaseSnakType.NO_VALUE, WikibaseSnakType.UNKNOWN_VALUE]:
-            del json_data['datavalue']
-
-        # datatype can be null with MediaInfo
-        if not self.datatype:
-            del json_data['datatype']
-
-        return json_data
-
-    def __eq__(self, other):
-        return self.snaktype == other.snaktype and self.property_number == other.property_number and self.datatype == other.datatype and self.datavalue == other.datavalue
diff --git a/wikibaseintegrator/wbi_fastrun.py b/wikibaseintegrator/wbi_fastrun.py
index 7ce7cc31..562672b4 100644
--- a/wikibaseintegrator/wbi_fastrun.py
+++ b/wikibaseintegrator/wbi_fastrun.py
@@ -9,13 +9,13 @@
 from typing import TYPE_CHECKING, Dict, List, Optional, Set, Type, Union
 
 from wikibaseintegrator.datatypes import BaseDataType
-from wikibaseintegrator.models import Claim
+from wikibaseintegrator.models.claim import Claim
 from wikibaseintegrator.wbi_config import config
 from wikibaseintegrator.wbi_enums import ActionIfExists, WikibaseDatatype
 from wikibaseintegrator.wbi_helpers import execute_sparql_query, format_amount
 
 if TYPE_CHECKING:
-    from wikibaseintegrator.models import Claims
+    from wikibaseintegrator.models.claims import Claims
 
 log = logging.getLogger(__name__)