[
  {
    "assertion": 1,
    "retraction": 0,
    "graph": "graph",
    "subject": "DOID:8564",
    "predicate": "oio:hasExactSynonym",
    "object": "malignant neoplasm of oral aspect of lip, not specified whether upper or lower",
    "datatype": "@en",
    "annotation": ""
  }
]