{
  "@context": {
    "@version": 1.1,
    "@protected": true,
    "protected": "ex:protected",
    "unprotected": {
      "@id": "ex:unprotected1",
      "@protected": false
    }
  },
  "protected": {
    "@context": {
      "unprotected": "ex:unprotected2"
    },
    "unprotected": "p === ex:unprotected2"
  },
  "unprotected": "p === ex:unprotected1"
}
