assertion  retraction  graph  subject    predicate    object                                 datatype    annotation
1          0           graph  DOID:3128  IAO:0000115  A rectal disease located_in the anus.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.health.harvard.edu/a_to_z/anal-disorders-a-to-z""}]}"