assertion  retraction  graph  subject           predicate            object                      datatype    annotation
1          0           graph  obo:SYMP_0020060  rdfs:label           low white blood cell count  xsd:string  
1          0           graph  obo:SYMP_0020060  oio:id               SYMP:0020060                xsd:string  
1          0           graph  obo:SYMP_0020060  oio:hasOBONamespace  symptoms                    xsd:string  
1          0           graph  obo:SYMP_0020060  rdfs:subClassOf      obo:SYMP_0019139            _IRI        
1          0           graph  obo:SYMP_0020060  rdf:type             owl:Class                   _IRI