{
  "@context": {
    "ex": "http://example.org/"
  },
  "@graph": [
    {
      "@id": "ex:looker",
      "ex:canSee": [
        {
          "@id": "ex:forgotten"
        },
        {
          "@id": "ex:spotted"
        }
      ]
    },
    {
      "@id": "ex:spotted"
    }
  ]
}