assertion  retraction  graph  subject          predicate        object             datatype  annotation
1          0           graph  DOID:4648        rdfs:subClassOf  DOID:768           _IRI      
1          0           graph  DOID:3317        rdfs:subClassOf  DOID:916           _IRI      
1          0           graph  DOID:4527        rdfs:subClassOf  DOID:1115          _IRI      
1          0           graph  DOID:4527        rdfs:subClassOf  DOID:0001816       _IRI      
1          0           graph  DOID:4527        rdfs:subClassOf  DOID:2394          _IRI      
1          0           graph  DOID:6947        rdfs:subClassOf  DOID:1350          _IRI      
1          0           graph  DOID:6705        rdfs:subClassOf  DOID:5517          _IRI      
1          0           graph  obo:CHEBI_33238  rdfs:subClassOf  obo:CHEBI_33259    _IRI      
1          0           graph  DOID:7915        rdfs:subClassOf  DOID:1140          _IRI      
1          0           graph  NCBITaxon:88770  rdfs:subClassOf  NCBITaxon:1206794  _IRI      
1          0           graph  DOID:28          rdfs:subClassOf  DOID:7             _IRI      
1          0           graph  DOID:910         rdfs:subClassOf  DOID:368           _IRI      
1          0           graph  DOID:2338        rdfs:subClassOf  DOID:1862          _IRI      
1          0           graph  DOID:4879        rdfs:subClassOf  DOID:3999          _IRI      
1          0           graph  DOID:3306        rdfs:subClassOf  DOID:2994          _IRI      
1          0           graph  DOID:0081089     rdfs:subClassOf  DOID:9119          _IRI      
1          0           graph  DOID:5726        rdfs:subClassOf  DOID:0060095       _IRI      
1          0           graph  DOID:6936        rdfs:subClassOf  DOID:11885         _IRI      
1          0           graph  DOID:5605        rdfs:subClassOf  DOID:3458          _IRI      
1          0           graph  DOID:17          rdfs:subClassOf  DOID:7             _IRI