[
  {
    "title": "Unknown keywords are not annotations in draft-04",
    "schema": {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "unknown": "Foo"
    },
    "subjects": [
      {
        "instance": 42,
        "assertions": [
          {
            "location": "#",
            "keyword": "unknown",
            "expected": []
          }
        ]
      }
    ]
  },
  {
    "title": "Unknown keywords are not annotations in draft-06",
    "schema": {
      "$schema": "http://json-schema.org/draft-06/schema#",
      "unknown": "Foo"
    },
    "subjects": [
      {
        "instance": 42,
        "assertions": [
          {
            "location": "#",
            "keyword": "unknown",
            "expected": []
          }
        ]
      }
    ]
  },
  {
    "title": "Unknown keywords are not annotations in draft-07",
    "schema": {
      "$schema": "http://json-schema.org/draft-07/schema#",
      "unknown": "Foo"
    },
    "subjects": [
      {
        "instance": 42,
        "assertions": [
          {
            "location": "#",
            "keyword": "unknown",
            "expected": []
          }
        ]
      }
    ]
  },
  {
    "title": "Unknown keywords may or may not be annotations in 2019-09",
    "schema": {
      "$schema": "https://json-schema.org/draft/2019-09/schema",
      "unknown": "Foo"
    },
    "$comment": "'subjects' is intentionally left empty",
    "subjects": []
  },
  {
    "title": "Unknown keywords are annotations in 2020-12",
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "unknown": "Foo"
    },
    "subjects": [
      {
        "instance": 42,
        "assertions": [
          {
            "location": "#",
            "keyword": "unknown",
            "expected": ["Foo"]
          }
        ]
      }
    ]
  }
]