assertion  retraction  graph  subject       predicate        object        datatype    annotation
1          0           graph  DOID:3906     rdfs:subClassOf  DOID:0050621  _IRI        
1          0           graph  DOID:0050621  oio:id           DOID:0050621  xsd:string  
1          0           graph  DOID:248      rdfs:subClassOf  DOID:0050621  _IRI        
1          0           graph  DOID:2598     rdfs:subClassOf  DOID:0050621  _IRI        
1          0           graph  DOID:6059     rdfs:subClassOf  DOID:0050621  _IRI        
1          0           graph  DOID:5157     rdfs:subClassOf  DOID:0050621  _IRI        
1          0           graph  DOID:3683     rdfs:subClassOf  DOID:0050621  _IRI        
1          0           graph  DOID:6564     rdfs:subClassOf  DOID:0050621  _IRI        
1          0           graph  DOID:1350     rdfs:subClassOf  DOID:0050621  _IRI        
1          0           graph  DOID:10195    rdfs:subClassOf  DOID:0050621  _IRI        
1          0           graph  DOID:9310     rdfs:subClassOf  DOID:0050621  _IRI