CREATE TABLE table_68556 ("Outcome" TEXT, "Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent" TEXT, "Score" TEXT)

Which outcome has a Surface of clay and a Score of 4 6, 7 5, 2 6?
SELECT "Outcome" FROM table_68556 WHERE "Surface" = 'clay' AND "Score" = '4–6, 7–5, 2–6'
SELECT "Outcome" FROM "table_68556" WHERE "Score" = '4–6, 7–5, 2–6' AND "Surface" = 'clay'