Surface ตัวใดมีคู่แข่งในรอบสุดท้ายของ Mark Edmondson Sherwood Stewart และ Tournament of dallas us?ไม่จำเป็นต้องใช้ตารางทั้งหมด
which Surface has Opponents in the final of mark edmondson sherwood stewart and a Tournament of dallas  u.s.?It is not neccessary to use all the tables.
 table_name_74:  (surface [ VARCHAR ] opponents_in_the_final [ VARCHAR ] tournament [ VARCHAR) ]
SELECT surface FROM table_name_74 WHERE opponents_in_the_final = "mark edmondson sherwood stewart" AND tournament = "dallas , u.s."