{
  "$schema": "https://json-schema.org/draft/2020-12schema",
  "$id": "https://schemas.mpai.community/OSD/V1.4/data/BasicSceneDescriptors.json",
  "title": "BasicSceneDescriptors",
  "type": "object",   "properties": { 
    "Header": { "type": "string", "pattern": "^OSD-BSD-V[0-9]{1,2}[.][0-9]{1,2}$" },
    "MInstanceID": { "type": "string" },
    "BasicSceneDescriptorsID": { "type": "string" },
    "GravityValue": { "type": "number" },
    "BasicSceneDescriptorsSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.4/data/SpaceTime.json" },
    "ObjectCount": { "type": "integer" },
    "BasicSceneDescriptors": { "type": "array", "items": { "type": "object", "properties": {
      "ObjectSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.4/data/SpaceTime.json" },
      "ObjectMediaType": { "$ref": "https://schemas.mpai.community/TFA/V1.4/types/MediaTypes.json" },
      "ObjectIDOrObject": { "type": "array", "items": { "anyOf": [
        { "type": "object", "properties": { "Object": { "$ref": "https://schemas.mpai.community/OSD/V1.4/data/Object.json"  } } },
        { "type": "object", "properties": { "ObjectID": { "type": "string" } } } ] } } } } },
    "Rights": { "$ref": "https://schemas.mpai.community/MMM4/V2.0/data/Rights.json" },
    "DescrMetadata": { "type": "string" }
  }
}