[
  {
    "@context": {
      "e": "http://example.org/vocab#",
      "e:B": {
        "@type": "@id"
      },
      "xsd": "http://www.w3.org/2001/XMLSchema#"
    },
    "@id": "http://example.org/test",
    "e:A": {
      "@id": "_:b1"
    },
    "e:B": "_:b1"
  },
  {
    "@id": "_:b1",
    "name": "foo"
  }
]