assertion  retraction  graph  subject          predicate        object           datatype  annotation
1          0           graph  DOID:2154        rdfs:subClassOf  DOID:263         _IRI      
1          0           graph  DOID:5784        rdfs:subClassOf  DOID:5041        _IRI      
1          0           graph  DOID:3001        rdfs:subClassOf  DOID:120         _IRI      
1          0           graph  DOID:6994        rdfs:subClassOf  DOID:3478        _IRI      
1          0           graph  DOID:4211        rdfs:subClassOf  DOID:3565        _IRI      
1          0           graph  DOID:6752        rdfs:subClassOf  DOID:0080619     _IRI      
1          0           graph  DOID:6752        rdfs:subClassOf  DOID:3315        _IRI      
1          0           graph  DOID:5421        rdfs:subClassOf  DOID:5409        _IRI      
1          0           graph  obo:CHEBI_33285  rdfs:subClassOf  obo:CHEBI_50860  _IRI      
1          0           graph  DOID:7841        rdfs:subClassOf  DOID:0080903     _IRI      
1          0           graph  DOID:6510        rdfs:subClassOf  DOID:3907        _IRI      
1          0           graph  DOID:8930        rdfs:subClassOf  DOID:8618        _IRI      
1          0           graph  DOID:2143        rdfs:subClassOf  DOID:2394        _IRI      
1          0           graph  DOID:5894        rdfs:subClassOf  DOID:5758        _IRI      
1          0           graph  DOID:4442        rdfs:subClassOf  DOID:4362        _IRI      
1          0           graph  DOID:3111        rdfs:subClassOf  DOID:60004       _IRI      
1          0           graph  DOID:4321        rdfs:subClassOf  DOID:174         _IRI      
1          0           graph  DOID:5531        rdfs:subClassOf  DOID:1749        _IRI      
1          0           graph  DOID:5531        rdfs:subClassOf  DOID:2394        _IRI      
1          0           graph  DOID:6741        rdfs:subClassOf  DOID:3459        _IRI