assertion  retraction  graph  subject       predicate      object       datatype    annotation
1          0           graph  DOID:0080906  oio:hasDbXref  ICDO:9500/3  xsd:string  
1          0           graph  DOID:0081315  oio:hasDbXref  ICDO:9500/3  xsd:string  
1          0           graph  DOID:769      oio:hasDbXref  ICDO:9500/3  xsd:string