assertion  retraction  graph  subject              predicate    object                                datatype    annotation
1          0           graph  obo:DISDRIV_0000006  IAO:0000115  A disease driver that is a chemical.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/29351546/""}]}"