CREATE TABLE table_name_33 (fa_cup_goals INTEGER, league_goals VARCHAR(255), other_goals VARCHAR(255), fl_cup_goals VARCHAR(255))
What is the average FA Cup Goal value for players that have 0 Other goals, 0 FL Cup goals, and fewer than 39 League goals?
    
SQL: SELECT AVG(fa_cup_goals) FROM table_name_33 WHERE other_goals = 0 AND fl_cup_goals = 0 AND league_goals < 39