assertion  retraction  graph  subject       predicate    object                                                                                                            datatype    annotation
1          0           graph  DOID:0080902  IAO:0000115  A bladder carcinoma that is characterized as an undifferentiated neoplasm composed of primitive-appearing cells.  xsd:string  "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/29763719/""}]}"