เกมใดมีคะแนน 89-91?ไม่จำเป็นต้องใช้ทุกโต๊ะ
What game has a score of 89-91?It is not neccessary to use all the tables.
 table_name_27:  (game [ INTEGER ] score [ VARCHAR) ]
SELECT AVG(game) FROM table_name_27 WHERE score = "89-91"