assertion  retraction  graph  subject     predicate        object     datatype    annotation
1          0           graph  DOID:1738   rdfs:subClassOf  DOID:7505  _IRI        
1          0           graph  DOID:1737   rdfs:subClassOf  DOID:7505  _IRI        
1          0           graph  DOID:3218   rdfs:subClassOf  DOID:7505  _IRI        
1          0           graph  DOID:7505   oio:id           DOID:7505  xsd:string  
1          0           graph  DOID:10156  rdfs:subClassOf  DOID:7505  _IRI        
1          0           graph  DOID:4434   rdfs:subClassOf  DOID:7505  _IRI