{
  "id": "keyword.json#",
  "$schema": "http://json-schema.org/draft-04/schema#",
  "description": "schema for a keyword entry",
  "type": "object",
  "required": ["keyword"],
  "additionalProperties": false,
  "properties": {
    "keyword": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "uniqueItems": true
    },
    "keywordType": {
      "type": "string"
    },
    "thesaurus": {
      "$ref": "#/definitions/thesaurus"
    }
  },
  "definitions": {
    "thesaurus": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "thesaurusLink": {
          "$ref": "../schema.json#/definitions/url"
        },
        "citation": {
          "$ref": "citation.json#/definitions/citationBase"
        }
      }
    }
  }
}