assertion  retraction  graph  subject          predicate        object           datatype  annotation
1          0           graph  DOID:2658        rdfs:subClassOf  DOID:2660        _IRI      
1          0           graph  DOID:3868        rdfs:subClassOf  DOID:0050902     _IRI      
1          0           graph  DOID:2537        rdfs:subClassOf  DOID:870         _IRI      
1          0           graph  DOID:3747        rdfs:subClassOf  DOID:3748        _IRI      
1          0           graph  DOID:4957        rdfs:subClassOf  DOID:3565        _IRI      
1          0           graph  DOID:4957        rdfs:subClassOf  DOID:264         _IRI      
1          0           graph  DOID:0080199     rdfs:subClassOf  DOID:305         _IRI      
1          0           graph  DOID:0080199     rdfs:subClassOf  DOID:9256        _IRI      
1          0           graph  DOID:4715        rdfs:subClassOf  DOID:4148        _IRI      
1          0           graph  DOID:0060597     rdfs:subClassOf  DOID:4972        _IRI      
1          0           graph  obo:CHEBI_24835  rdfs:subClassOf  obo:CHEBI_23367  _IRI      
1          0           graph  DOID:1679        rdfs:subClassOf  DOID:365         _IRI      
1          0           graph  DOID:2889        rdfs:subClassOf  DOID:2742        _IRI      
1          0           graph  DOID:1558        rdfs:subClassOf  DOID:37          _IRI      
1          0           graph  DOID:3978        rdfs:subClassOf  DOID:0050700     _IRI      
1          0           graph  DOID:2647        rdfs:subClassOf  DOID:3350        _IRI      
1          0           graph  NCBITaxon:573    rdfs:subClassOf  NCBITaxon:570    _IRI      
1          0           graph  DOID:3857        rdfs:subClassOf  DOID:0050902     _IRI      
1          0           graph  DOID:2526        rdfs:subClassOf  DOID:10286       _IRI      
1          0           graph  DOID:2526        rdfs:subClassOf  DOID:299         _IRI