assertion  retraction  graph  subject    predicate        object     datatype    annotation
1          0           graph  DOID:6901  rdfs:subClassOf  DOID:2152  _IRI        
1          0           graph  DOID:6214  rdfs:subClassOf  DOID:2152  _IRI        
1          0           graph  DOID:6212  rdfs:subClassOf  DOID:2152  _IRI        
1          0           graph  DOID:4000  rdfs:subClassOf  DOID:2152  _IRI        
1          0           graph  DOID:2152  oio:id           DOID:2152  xsd:string  
1          0           graph  DOID:6067  rdfs:subClassOf  DOID:2152  _IRI        
1          0           graph  DOID:2151  rdfs:subClassOf  DOID:2152  _IRI        
1          0           graph  DOID:9597  rdfs:subClassOf  DOID:2152  _IRI