assertion  retraction  graph  subject           predicate            object            datatype    annotation
1          0           graph  obo:SYMP_0020040  rdfs:label           hair symptom      xsd:string  
1          0           graph  obo:SYMP_0020040  oio:id               SYMP:0020040      xsd:string  
1          0           graph  obo:SYMP_0020040  oio:hasOBONamespace  symptoms          xsd:string  
1          0           graph  obo:SYMP_0020040  rdfs:subClassOf      obo:SYMP_0000488  _IRI        
1          0           graph  obo:SYMP_0020040  rdf:type             owl:Class         _IRI