assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:6053 oio:hasExactSynonym pediatric germ cell neoplasm @en 1 0 graph DOID:6053 oio:hasExactSynonym paediatric germ cell neoplasm @en 1 0 graph DOID:7142 oio:hasExactSynonym small cell carcinoma of the Thymus @en 1 0 graph DOID:10290 oio:hasExactSynonym lymphoma of prostate @en 1 0 graph DOID:8352 oio:hasExactSynonym aortic malignant neoplasm @en