assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:8042  rdfs:subClassOf  DOID:5556  _IRI        
1          0           graph  DOID:7928  rdfs:subClassOf  DOID:5556  _IRI        
1          0           graph  DOID:4743  rdfs:subClassOf  DOID:5556  _IRI        
1          0           graph  DOID:5556  oio:id           DOID:5556  xsd:string  
1          0           graph  DOID:5345  rdfs:subClassOf  DOID:5556  _IRI