CREATE TABLE table_name_63 (goal_difference NUMBER, club VARCHAR2, points VARCHAR2, losses VARCHAR2)

What is the average goal difference of club cultural leonesa, which has more than 27 points and less than 9 losses?
SELECT AVG(goal_difference) FROM table_name_63 WHERE points > 27 AND losses < 9 AND club = "cultural leonesa"
SELECT AVG("goal_difference") FROM "table_name_63" WHERE "club" = "cultural leonesa" AND "losses" < 9 AND "points" > 27