What was the lowest lost entry for a team with fewer than 21 goals for?
CREATE TABLE table_name_39 (lost INTEGER, goals_for INTEGER)
SELECT MIN(lost) FROM table_name_39 WHERE goals_for < 21
### Context: CREATE TABLE table_name_39 (lost INTEGER, goals_for INTEGER) ### Question: What was the lowest lost entry for a team with fewer than 21 goals for? ### Answer: SELECT MIN(lost) FROM table_name_39 WHERE goals_for < 21