CREATE TABLE table_name_39 (played INTEGER, losses VARCHAR(255), goals_for VARCHAR(255), goals_against VARCHAR(255), wins VARCHAR(255))
Which Played has Goals against larger than 34, and Wins smaller than 12, and Goals for smaller than 50, and Losses larger than 15?
    
SQL: SELECT AVG(played) FROM table_name_39 WHERE goals_against > 34 AND wins < 12 AND goals_for < 50 AND losses > 15