assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:672 IAO:0000115 A lymphatic system cancer that affects white blood cells and involves tumor deposits in the spleen. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3614769/""}]}"