_:vb50947522 "url:http://www.cancer.gov/dictionary?CdrID=45562"^^ . _:vb50947522 . _:vb50947522 . _:vb50947522 "A cell type cancer that has_material_basis_in abnormally proliferating cells derives from embryonic mesoderm."^^ . _:vb50947522 "url:http://en.wikipedia.org/wiki/Sarcoma"^^ . _:vb50947522 . _:vb50947522 "url:http://cancergenome.nih.gov/cancersselected/Sarcoma"^^ . _:vb50947522 . _:vb50947522 . _:vb50947522 . _:vb50947522 .