assertion  retraction  graph  subject          predicate        object            datatype  annotation
1          0           graph  DOID:6498        rdfs:subClassOf  DOID:161          _IRI      
1          0           graph  DOID:5046        rdfs:subClassOf  DOID:6175         _IRI      
1          0           graph  DOID:7587        rdfs:subClassOf  DOID:7763         _IRI      
1          0           graph  DOID:7587        rdfs:subClassOf  DOID:1749         _IRI      
1          0           graph  DOID:6256        rdfs:subClassOf  DOID:5716         _IRI      
1          0           graph  DOID:10493       rdfs:subClassOf  DOID:3952         _IRI      
1          0           graph  DOID:7224        rdfs:subClassOf  DOID:5612         _IRI      
1          0           graph  DOID:7103        rdfs:subClassOf  DOID:3643         _IRI      
1          0           graph  DOID:7103        rdfs:subClassOf  DOID:4437         _IRI      
1          0           graph  obo:CHEBI_15365  rdfs:subClassOf  obo:CHEBI_26596   _IRI      
1          0           graph  obo:CHEBI_15365  rdfs:subClassOf  obo:CHEBI_22723   _IRI      
1          0           graph  obo:CHEBI_15365  rdfs:subClassOf  obo:CHEBI_140310  _IRI      
1          0           graph  DOID:472         rdfs:subClassOf  DOID:10069        _IRI      
1          0           graph  DOID:472         rdfs:subClassOf  DOID:255          _IRI      
1          0           graph  DOID:5398        rdfs:subClassOf  DOID:657          _IRI      
1          0           graph  DOID:4067        rdfs:subClassOf  DOID:14110        _IRI      
1          0           graph  DOID:4067        rdfs:subClassOf  DOID:1115         _IRI      
1          0           graph  DOID:7697        rdfs:subClassOf  DOID:1799         _IRI      
1          0           graph  DOID:6245        rdfs:subClassOf  DOID:3116         _IRI      
1          0           graph  DOID:7334        rdfs:subClassOf  DOID:657          _IRI