index_template.json

{
  "order": 0,
  "index_patterns": ["*-transcripts"],
  "settings": {
    "analysis": {
      "analyzer": {
        "caption_analyzer": {
          "type":      "custom",
          "tokenizer": "standard",
          "filter": [
            "standard",
            "lowercase",
            "caption_stemmer"
          ]
        }
      },
      "filter" : {
        "caption_stemmer" : {
          "type" : "stemmer",
          "name" : "english"
        }
      }
    }
  },
  "mappings": {
    "_doc": {
      "dynamic_templates": [
        {
          "string_fields": {
            "match_mapping_type": "string",
            "match": "*",
            "mapping": {
              "type": "keyword",
              "index": true,
              "norms": false
            }
          }
        }
      ],
      "properties": {
        "text": {
          "type": "text",
          "index": true,
          "store": false,
          "analyzer": "caption_analyzer"
        },
        "captions": {
          "type": "nested",
          "properties": {
            "text": {
              "type": "text",
              "store": true,
              "index": true,
              "norms": false,
              "term_vector": "with_positions_offsets",
              "analyzer": "caption_analyzer"
            }
          }
        }
      },
      "_all": {
        "enabled": false
      }
    }
  },
  "aliases": {}
}