json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "title": "Granicus Captions",
      "description": "",
      "type": "array",
      "items": {
          "type": "array",
          "minItems": 1,
          "items": {
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                  {
                      "$ref": "#/definitions/caption"
                  },
                  {
                      "$ref": "#/definitions/metadata"
                  }
              ]
          }
      },
      "definitions": {
          "caption": {
              "type": "object",
              "title": "caption",
              "properties": {
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                      "pattern": "[0-9]+(\\.[0-9]+)?"
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                      "pattern": "[0-9]+(\\.[0-9]+)?"
                  },
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                      ]
                  },
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                      "pattern": "^Agenda\\:[0-9]+$"
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                      "pattern": "^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$"
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          }
      }
  }