_:vb50939591 . _:vb50939590 . _:vb50939592 _:vb50939591 . _:vb50939590 . _:vb50939590 _:vb50939593 . "disease_ontology"^^ . . . _:vb50939593 . _:vb50939591 . _:vb50939591 . _:vb50939590 . _:vb50939591 . _:vb50939592 . . _:vb50939593 . "blastoma"^^ . _:vb50939593 _:vb50939592 . "A cell type cancer that has_material_basis_in abnormally proliferating cells derives_from precursor cells called blast cells."^^ . "DOID:0070003"^^ . _:vb50939592 .