assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:4680 IAO:0000115 A breast carcinoma that represents a mixed group of malignant neoplasms characterized by the histologic presence of two or more cellular types. xsd:string "{""dce:type"":[{""datatype"":""_IRI"",""meta"":""owl:Axiom"",""object"":""obo:ECO_0007645""}],""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:http://www.archivesofpathology.org/doi/pdf/10.5858/arpa.2013-0358-RS?code=coap-site""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3388429/""}]}"