assertion  retraction  graph  subject     predicate        object      datatype    annotation
1          0           graph  DOID:10349  rdfs:subClassOf  DOID:10350  _IRI        
1          0           graph  DOID:10686  rdfs:subClassOf  DOID:10350  _IRI        
1          0           graph  DOID:10350  oio:id           DOID:10350  xsd:string