Quantos gols contra foram marcados quando os pontos eram menores que 13, as vitórias eram menores que 3, e os gols para eram menores que 15?
CREATE TABLE table_name_73 (goals_against INTEGER, goals_for VARCHAR, points VARCHAR, wins VARCHAR)
SELECT SUM(goals_against) FROM table_name_73 WHERE points < 13 AND wins < 3 AND goals_for < 15