[
  {
    "assertion": 1,
    "retraction": 0,
    "graph": "graph",
    "subject": "DOID:0050750",
    "predicate": "oio:creation_date",
    "object": "2012-09-18T02:03:06Z",
    "datatype": "xsd:string",
    "annotation": ""
  }
]