Opencypher Open Cypher Relationship Structure

{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/amazon-neptune/refs/heads/main/json-structure/opencypher-open-cypher-relationship-structure.json",
  "name": "OpenCypherRelationship",
  "description": "A property graph relationship as returned by openCypher queries.",
  "type": "object",
  "properties": {
    "~id": {
      "type": "string",
      "description": "The unique identifier of the relationship."
    },
    "~entityType": {
      "type": "string",
      "enum": [
        "relationship"
      ],
      "description": "The entity type (always 'relationship')."
    },
    "~start": {
      "type": "string",
      "description": "The ID of the source node."
    },
    "~end": {
      "type": "string",
      "description": "The ID of the target node."
    },
    "~type": {
      "type": "string",
      "description": "The relationship type."
    },
    "~properties": {
      "type": "object",
      "additionalProperties": true,
      "description": "The relationship properties as key-value pairs."
    }
  }
}