multiple parent-child level query with Elasticsearch

multiple_child_levels.bash

curl -XDELETE localhost:9200/test/
curl -XPUT localhost:9200/test/
curl -XPUT localhost:9200/test/son/_mapping -d '{
  "son": {
    "_parent": {
      "type": "mother"
    }
  }
}'
curl -XPUT localhost:9200/test/daughter/_mapping -d '{
  "daughter": {
    "_parent": {
      "type": "mother"
    }
  }
}'
curl -XPUT localhost:9200/test/grandson/_mapping -d '{
  "daughter": {
    "_parent": {
      "type": "daughter"
    }
  }
}'
curl -XPUT localhost:9200/test/mother/1 -d '{"name": "mommy"}'
curl -XPUT localhost:9200/test/son/1?parent=1 -d '{"name": "le son"}'
curl -XPUT localhost:9200/test/daughter/1?parent=1 -d '{"name": "le daughter"}'
curl -XPUT localhost:9200/test/grandson/1?parent=1 -d '{"name": "le baby"}'
curl -XPOST localhost:9200/test/_refresh
#############
#search for sons by filtering on mother, daughter and grandson
#############
curl -XPOST localhost:9200/test/son/_search?pretty -d '{
  "filter": {
    "has_parent": {
      "parent_type": "mother",
      "filter": {
        "and": [
          {
            "term": {
              "name":"mommy"
            }
          },
          {
            "has_child": {
              "type": "daughter",
              "filter": {
                "and": [
                  {
                    "term": {
                      "name": "daughter"
                    }
                  },
                  {
                    "has_child": {
                      "type": "grandson",
                      "filter": {
                        "term" : {
                          "name": "baby"
                        }
                      }
                    }
                  }
                ]
              }
            }
          }
        ]
      }
    }
  }
}'