assertion  retraction  graph  subject     predicate        object      datatype    annotation
1          0           graph  DOID:10854  oio:id           DOID:10854  xsd:string  
1          0           graph  DOID:10302  rdfs:subClassOf  DOID:10854  _IRI        
1          0           graph  DOID:12897  rdfs:subClassOf  DOID:10854  _IRI        
1          0           graph  DOID:10264  rdfs:subClassOf  DOID:10854  _IRI        
1          0           graph  DOID:8850   rdfs:subClassOf  DOID:10854  _IRI