_:vb50953309 . _:vb50953309 . _:vb50953309 "url:http://en.wikipedia.org/wiki/Clear-cell_sarcoma_of_the_kidney"^^ . _:vb50953309 . _:vb50953309 . _:vb50953309 "A kidney sarcoma that has_material_basis_in clear cells that are characterized as cells that look clear when viewed under a microscope."^^ . _:vb50953309 . _:vb50953309 . _:vb50953309 . _:vb50953309 "url:http://www.cancer.gov/dictionary?CdrID=44997"^^ .