assertion  retraction  graph  subject       predicate    object                                                                                                                                    datatype    annotation
1          0           graph  DOID:0080531  IAO:0000115  A liposarcoma that is characterized as a high-grade tumor that occurs when a lower-grade tumor changes and creates new high-grade cells.  xsd:string  "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007645""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6211889/""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/pubmed/26645460""}]}"