assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:4708  rdfs:subClassOf  DOID:4437  _IRI        
1          0           graph  DOID:7819  rdfs:subClassOf  DOID:4437  _IRI        
1          0           graph  DOID:7818  rdfs:subClassOf  DOID:4437  _IRI        
1          0           graph  DOID:6517  rdfs:subClassOf  DOID:4437  _IRI        
1          0           graph  DOID:4437  oio:id           DOID:4437  xsd:string  
1          0           graph  DOID:7820  rdfs:subClassOf  DOID:4437  _IRI        
1          0           graph  DOID:7103  rdfs:subClassOf  DOID:4437  _IRI        
1          0           graph  DOID:7054  rdfs:subClassOf  DOID:4437  _IRI