assertion  retraction  graph  subject        predicate    object        datatype    annotation
1          0           graph  ONTIE:0003609  rdfs:label   death status  xsd:string  
1          0           graph  ONTIE:0003609  IAO:0000234  CoVIC-DB      xsd:string  
1          0           graph  ONTIE:0003609  rdf:type     owl:Class     _IRI