Martina Navratilova ชนะวิมเบิลดันในปีใด?ไม่จำเป็นต้องใช้ตารางทั้งหมด
What year did Martina Navratilova win Wimbledon?It is not neccessary to use all the tables.
 table_2092557_12:  (wimbledon [ VARCHAR ] player [ VARCHAR) ]
SELECT wimbledon FROM table_2092557_12 WHERE player = "Martina Navratilova"