assertion  retraction  graph  subject       predicate        object     datatype    annotation
1          0           graph  DOID:0060058  rdfs:subClassOf  DOID:2531  _IRI        
1          0           graph  DOID:712      rdfs:subClassOf  DOID:2531  _IRI        
1          0           graph  DOID:2531     oio:id           DOID:2531  xsd:string  
1          0           graph  DOID:3664     rdfs:subClassOf  DOID:2531  _IRI        
1          0           graph  DOID:5621     rdfs:subClassOf  DOID:2531  _IRI        
1          0           graph  DOID:4960     rdfs:subClassOf  DOID:2531  _IRI        
1          0           graph  DOID:5772     rdfs:subClassOf  DOID:2531  _IRI        
1          0           graph  DOID:1240     rdfs:subClassOf  DOID:2531  _IRI        
1          0           graph  DOID:8683     rdfs:subClassOf  DOID:2531  _IRI