assertion  retraction  graph  subject           predicate            object                         datatype    annotation
1          0           graph  obo:SYMP_0000597  rdfs:label           head and neck symptom          xsd:string  
1          0           graph  obo:SYMP_0000597  oio:id               SYMP:0000597                   xsd:string  
1          0           graph  obo:SYMP_0000597  oio:hasOBONamespace  symptoms                       xsd:string  
1          0           graph  obo:SYMP_0000597  oio:hasDbXref        UMLS_ICD9CM_2005_AUI:A0284173  xsd:string  
1          0           graph  obo:SYMP_0000597  oio:hasDbXref        UMLS_CUI:C0476247              xsd:string  
1          0           graph  obo:SYMP_0000597  oio:hasDbXref        ICD9CM_2005:784                xsd:string  
1          0           graph  obo:SYMP_0000597  rdfs:subClassOf      obo:SYMP_0000462               _IRI        
1          0           graph  obo:SYMP_0000597  rdf:type             owl:Class                      _IRI