assertion  retraction  graph  subject     predicate        object     datatype    annotation
1          0           graph  DOID:6050   oio:id           DOID:6050  xsd:string  
1          0           graph  DOID:9095   rdfs:subClassOf  DOID:6050  _IRI        
1          0           graph  DOID:959    rdfs:subClassOf  DOID:6050  _IRI        
1          0           graph  DOID:960    rdfs:subClassOf  DOID:6050  _IRI        
1          0           graph  DOID:10187  rdfs:subClassOf  DOID:6050  _IRI        
1          0           graph  DOID:5041   rdfs:subClassOf  DOID:6050  _IRI