{
  "$schema": "http://json-schema.org/draft-07/schema#", 
  "definitions": {
    "aggregated_query": {
      "type": "object",
      "properties": {
        "aggregator": { "type": "string" },
        "unaggregated_list": {
            "type": "array",
            "items": {
                "properties": {
                    "order":{ "type": "integer" },
                    "path": { "type": "string" },
                    "operator": { "type": "string" },
                    "string_value": { "type": "string" },
                    "numeric_value": { "type": "integer" }
                },
                "oneOf": [
                    {"required":["path", "operator", "string_value"]},
                    {"required":["path", "operator", "numeric_value"]}
                ],
                "additionalProperties": false
            },
            "default": []
        },
        "aggregated_list": { 
            "type": "array",
            "items": {"$ref": "#/definitions/aggregated_query"},
            "default": []
        }
      },
      "additionalProperties": false
    }
  },
  
  "type": "array",
  "items": {
    "properties": {
        "concept": { "type": "string"},
        "query": { "$ref": "#/definitions/aggregated_query" },
        "additionalProperties": false
    },
    "additionalProperties": false
   }    
}