{ "@context": { "e": "http://example.org/vocab#", "e:next": {"@type": "@id"}, "e:prev": {"@type": "@id"} }, "@graph": [ { "@id": "_:b1", "e:next": "_:b2", "e:prev": "_:b2" }, { "@id": "_:b2", "e:next": "_:b1", "e:prev": "_:b1" } ] }