assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:5207  rdfs:subClassOf  DOID:5567  _IRI        
1          0           graph  DOID:5567  oio:id           DOID:5567  xsd:string  
1          0           graph  DOID:6232  rdfs:subClassOf  DOID:5567  _IRI        
1          0           graph  DOID:6230  rdfs:subClassOf  DOID:5567  _IRI