assertion  retraction  graph  subject     predicate    object                                        datatype    annotation
1          0           graph  DOID:10146  IAO:0000115  A thymus cancer that arises from the thymus.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/12063471/""}]}"