สัญชาติใดมีผู้เล่น rudy poeschek?ไม่จำเป็นต้องใช้ตารางทั้งหมด
Which Nationality has a Player of rudy poeschek?It is not neccessary to use all the tables.
 table_name_51:  (nationality [ VARCHAR ] player [ VARCHAR) ]
SELECT nationality FROM table_name_51 WHERE player = "rudy poeschek"