assertion  retraction  graph  subject    predicate    object                                                                                                                                                                                                                                                                                              datatype    annotation
1          0           graph  DOID:5522  IAO:0000115  A squamous cell carcinoma that has a solid, closely packed growth of cells with hyperchromatic nuclei, scant cytoplasm, small cystic spaces, and foci of necrosis. It has overlying squamous dysplasia, rare foci of overt keratinization, and/or coexistent keratinizing squamous cell carcinoma.  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/pubmed/19738459""}]}"