[['player', 'height', 'position', 'year born', 'current club'], ['stepán vrubl', '1.86', 'guard', '1976', 'a plus brno'], ['pavel benes', '1.90', 'guard', '1975', 'nymburk'], ['maurice whitfield', '1.86', 'guard', '1973', 'olympiada patras'], ['michal kremen', '2.00', 'forward', '1981', 'nymburk'], ['lukás kraus', '2.01', 'forward', '1984', 'liberec'], ['jiří welsch', '1.97', 'guard', '1980', 'unicaja'], ['ladislav sokolovsky', '2.00', 'forward', '1977', 'nymburk'], ['luboš bartoň', '2.02', 'forward', '1980', 'dkv joventut'], ['radek necas', '2.04', 'forward', '1980', 'nymburk'], ['petr benda', '2.04', 'center', '1982', 'nymburk'], ['jakub houška', '2.06', 'center', '1982', 'děčín'], ['ondrej starosta', '2.15', 'center', '1979', 'basket cai zaragoza']]
there are the same number of Guard and Center
there are the same number of [ENT] and [ENT]