assertion  retraction  graph  subject          predicate        object           datatype  annotation
1          0           graph  DOID:2001        rdfs:subClassOf  DOID:0060115     _IRI      
1          0           graph  DOID:4542        rdfs:subClassOf  DOID:3829        _IRI      
1          0           graph  DOID:4542        rdfs:subClassOf  DOID:9500        _IRI      
1          0           graph  DOID:3211        rdfs:subClassOf  DOID:655         _IRI      
1          0           graph  DOID:5752        rdfs:subClassOf  DOID:3702        _IRI      
1          0           graph  DOID:5631        rdfs:subClassOf  DOID:1749        _IRI      
1          0           graph  DOID:5631        rdfs:subClassOf  DOID:1380        _IRI      
1          0           graph  DOID:4300        rdfs:subClassOf  DOID:2513        _IRI      
1          0           graph  DOID:6841        rdfs:subClassOf  DOID:6839        _IRI      
1          0           graph  DOID:5510        rdfs:subClassOf  DOID:1660        _IRI      
1          0           graph  DOID:7930        rdfs:subClassOf  DOID:5344        _IRI      
1          0           graph  obo:CHEBI_35552  rdfs:subClassOf  obo:CHEBI_33245  _IRI      
1          0           graph  DOID:0060061     rdfs:subClassOf  DOID:0050749     _IRI      
1          0           graph  DOID:2595        rdfs:subClassOf  DOID:2596        _IRI      
1          0           graph  DOID:4894        rdfs:subClassOf  DOID:3713        _IRI      
1          0           graph  DOID:4773        rdfs:subClassOf  DOID:0080015     _IRI      
1          0           graph  DOID:4773        rdfs:subClassOf  DOID:263         _IRI      
1          0           graph  DOID:5983        rdfs:subClassOf  DOID:4242        _IRI      
1          0           graph  DOID:5862        rdfs:subClassOf  DOID:3371        _IRI      
1          0           graph  DOID:4531        rdfs:subClassOf  DOID:305         _IRI