assertion  retraction  graph  subject    predicate    object                                 datatype    annotation
1          0           graph  DOID:1091  IAO:0000115  A mouth disease located_in the teeth.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://medlineplus.gov/toothdisorders.html""}]}"