assertion  retraction  graph  subject       predicate        object     datatype    annotation
1          0           graph  DOID:0050902  rdfs:subClassOf  DOID:4706  _IRI        
1          0           graph  DOID:4707     rdfs:subClassOf  DOID:4706  _IRI        
1          0           graph  DOID:4706     oio:id           DOID:4706  xsd:string  
1          0           graph  DOID:4205     rdfs:subClassOf  DOID:4706  _IRI        
1          0           graph  DOID:4203     rdfs:subClassOf  DOID:4706  _IRI        
1          0           graph  DOID:7501     rdfs:subClassOf  DOID:4706  _IRI