assertion  retraction  graph  subject           predicate            object                 datatype    annotation
1          0           graph  obo:SYMP_0019138  rdfs:label           immune system symptom  xsd:string  
1          0           graph  obo:SYMP_0019138  oio:id               SYMP:0019138           xsd:string  
1          0           graph  obo:SYMP_0019138  oio:hasOBONamespace  symptoms               xsd:string  
1          0           graph  obo:SYMP_0019138  rdfs:subClassOf      obo:SYMP_0017795       _IRI        
1          0           graph  obo:SYMP_0019138  rdf:type             owl:Class              _IRI