[
  {
    "assertion": 1,
    "retraction": 0,
    "graph": "graph",
    "subject": "DOID:4918",
    "predicate": "IAO:0000115",
    "object": "A renal pelvis carcinoma that derives_from epithelial cells of glandular origin.",
    "datatype": "xsd:string",
    "annotation": "{\"dce:type\":[{\"datatype\":\"_IRI\",\"meta\":\"owl:Axiom\",\"object\":\"obo:ECO_0007638\"}],\"oio:hasDbXref\":[{\"datatype\":\"xsd:string\",\"meta\":\"owl:Axiom\",\"object\":\"url:http://en.wikipedia.org/wiki/Adenocarcinoma\"}]}"
  }
]