"hits": [
            {
                "_index": "titles",
                "_type": "title",
                ...
                "_source": {
                    ...
                    "genres": [
                        {
                            "code": "adventure",
                            "priority": 1
                        },
                        {
                            "code": "action",
                            "priority": 2
                        },
                        {
                            "code": "horror",
                            "priority": 3
                        }
                    ],
                    ...
                },
                ...
        ]

"query": {
        "bool": {
            "filter": [
                {
                    "bool": {
                        "should":[
                            {"term": {
                                    "genres.code": {
                                        "value": "action",
                                        "boost": 1.0
                                    }
                            }},
                            {"term": {
                                    "genres.priority": {
                                        "value": 1,
                                        "boost": 1.0
                                    }
                            }}
                        ]
                    }
                },
                ...
            }