Amazon Neptune Index Mapping

{
  "amazon_neptune": {
    "aliases": {

    },
    "mappings": {
      "dynamic_templates": [
        {
          "datatype": {
            "path_match": "predicates.*.datatype",
            "mapping": {
              "index": "true",
              "type": "keyword"
            }
          }
        },
        {
          "graph": {
            "path_match": "predicates.*.graph",
            "mapping": {
              "index": "true",
              "type": "keyword"
            }
          }
        },
        {
          "language": {
            "path_match": "predicates.*.language",
            "mapping": {
              "index": "true",
              "type": "keyword"
            }
          }
        },
        {
          "value": {
            "path_match": "predicates.*.value",
            "mapping": {
              "fields": {
                "keyword": {
                  "ignore_above": 1000,
                  "type": "keyword"
                }
              },
              "type": "text"
            }
          }
        }
      ],
      "properties": {
        "document_type": {
          "type": "text",
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        },
        "entity_id": {
          "type": "text",
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        },
        "entity_type": {
          "type": "text",
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        },
        "predicates": {
          "properties": {
            "content": {
              "properties": {
                "value": {
                  "type": "text",
                  "fields": {
                    "keyword": {
                      "type": "keyword",
                      "ignore_above": 1000
                    }
                  }
                }
              }
            },
            "firstName": {
              "properties": {
                "value": {
                  "type": "text",
                  "fields": {
                    "keyword": {
                      "type": "keyword",
                      "ignore_above": 1000
                    }
                  }
                }
              }
            },
            "lastName": {
              "properties": {
                "value": {
                  "type": "text",
                  "fields": {
                    "keyword": {
                      "type": "keyword",
                      "ignore_above": 1000
                    }
                  }
                }
              }
            },
            "name": {
              "properties": {
                "value": {
                  "type": "text",
                  "fields": {
                    "keyword": {
                      "type": "keyword",
                      "ignore_above": 1000
                    }
                  }
                }
              }
            },
            "status": {
              "properties": {
                "value": {
                  "type": "text",
                  "fields": {
                    "keyword": {
                      "type": "keyword",
                      "ignore_above": 1000
                    }
                  }
                }
              }
            },
            "type": {
              "properties": {
                "value": {
                  "type": "text",
                  "fields": {
                    "keyword": {
                      "type": "keyword",
                      "ignore_above": 1000
                    }
                  }
                }
              }
            },
            "visibilityType": {
              "properties": {
                "value": {
                  "type": "text",
                  "fields": {
                    "keyword": {
                      "type": "keyword",
                      "ignore_above": 1000
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "settings": {
      "index": {
        "creation_date": "1653798913539",
        "number_of_shards": "1",
        "number_of_replicas": "1",
        "uuid": "d4XYVDW8QGuYoXtFntgPpg",
        "version": {
          "created": "7010199"
        },
        "provided_name": "amazon_neptune"
      }
    }
  }
}