{
  "@context": {
    "myid": {"@id": "http://example.com/myid", "@container": ["@id", "@set"]},
    "mytype": {"@id": "http://example.com/mytype", "@container": ["@type", "@set"]},
    "mylanguage": {"@id": "http://example.com/mylanguage", "@container": ["@language", "@set"]},
    "myindex": {"@id": "http://example.com/myindex", "@container": ["@index", "@set"]}
  }
}