Table schema:
CREATE TABLE table_name_74 (surface VARCHAR, opponents_in_the_final VARCHAR, tournament VARCHAR)

Question: which Surface has Opponents in the final of mark edmondson sherwood stewart, and a Tournament of dallas , u.s.?
SQL: SELECT surface FROM table_name_74 WHERE opponents_in_the_final = "mark edmondson sherwood stewart" AND tournament = "dallas , u.s."