assertion  retraction  graph  subject       predicate    object                                                                                    datatype    annotation
1          0           graph  DOID:0080641  IAO:0000115  A tongue cancer that derives_from epithelial cells that cover the surface of the tongue.  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007636""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&version=20.02d&ns=ncit&code=C4824&key=1996231099&b=1&n=null""}]}"