assertion  retraction  graph  subject          predicate        object           datatype  annotation
1          0           graph  DOID:2024        rdfs:subClassOf  DOID:2025        _IRI      
1          0           graph  DOID:5896        rdfs:subClassOf  DOID:5897        _IRI      
1          0           graph  DOID:3234        rdfs:subClassOf  DOID:0060058     _IRI      
1          0           graph  DOID:3234        rdfs:subClassOf  DOID:5772        _IRI      
1          0           graph  DOID:3113        rdfs:subClassOf  DOID:305         _IRI      
1          0           graph  DOID:4323        rdfs:subClassOf  DOID:174         _IRI      
1          0           graph  DOID:5533        rdfs:subClassOf  DOID:2871        _IRI      
1          0           graph  DOID:5533        rdfs:subClassOf  DOID:1749        _IRI      
1          0           graph  DOID:4202        rdfs:subClassOf  DOID:4203        _IRI      
1          0           graph  DOID:4202        rdfs:subClassOf  DOID:3070        _IRI      
1          0           graph  DOID:7953        rdfs:subClassOf  DOID:6629        _IRI      
1          0           graph  DOID:6501        rdfs:subClassOf  DOID:4203        _IRI      
1          0           graph  DOID:6501        rdfs:subClassOf  DOID:305         _IRI      
1          0           graph  DOID:8800        rdfs:subClassOf  DOID:8719        _IRI      
1          0           graph  DOID:0060084     rdfs:subClassOf  DOID:0060072     _IRI      
1          0           graph  obo:CHEBI_38831  rdfs:subClassOf  obo:CHEBI_35259  _IRI      
1          0           graph  DOID:1287        rdfs:subClassOf  DOID:7           _IRI      
1          0           graph  DOID:4554        rdfs:subClassOf  DOID:3275        _IRI      
1          0           graph  DOID:4433        rdfs:subClassOf  DOID:1799        _IRI      
1          0           graph  DOID:5764        rdfs:subClassOf  DOID:3565        _IRI