assertion  retraction  graph  subject       predicate        object    datatype    annotation
1          0           graph  DOID:0050925  rdfs:subClassOf  DOID:169  _IRI        
1          0           graph  DOID:169      oio:id           DOID:169  xsd:string  
1          0           graph  DOID:5777     rdfs:subClassOf  DOID:169  _IRI        
1          0           graph  DOID:2992     rdfs:subClassOf  DOID:169  _IRI        
1          0           graph  DOID:5577     rdfs:subClassOf  DOID:169  _IRI        
1          0           graph  DOID:3002     rdfs:subClassOf  DOID:169  _IRI        
1          0           graph  DOID:5574     rdfs:subClassOf  DOID:169  _IRI        
1          0           graph  DOID:4430     rdfs:subClassOf  DOID:169  _IRI