assertion  retraction  graph  subject           predicate            object                                                                                                                                                                     datatype    annotation
1          0           graph  obo:SYMP_0000731  rdfs:label           renal failure                                                                                                                                                              xsd:string  
1          0           graph  obo:SYMP_0000731  oio:id               SYMP:0000731                                                                                                                                                               xsd:string  
1          0           graph  obo:SYMP_0000731  oio:hasOBONamespace  symptoms                                                                                                                                                                   xsd:string  
1          0           graph  obo:SYMP_0000731  rdfs:subClassOf      obo:SYMP_0000486                                                                                                                                                           _IRI        
1          0           graph  obo:SYMP_0000731  rdf:type             owl:Class                                                                                                                                                                  _IRI        
1          0           graph  obo:SYMP_0000731  IAO:0000115          A urinary system symptom that is characterized by a loss of excretory function in one or both kidneys, leading to retention of nitrogenous waste products from the blood.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/books/NBK519012/""}]}"