How many clubs remain in the fourth round?
CREATE TABLE table_18328569_1 (clubs_remaining INTEGER, round VARCHAR)
SELECT MIN(clubs_remaining) FROM table_18328569_1 WHERE round = "Fourth round"
### Context: CREATE TABLE table_18328569_1 (clubs_remaining INTEGER, round VARCHAR) ### Question: How many clubs remain in the fourth round? ### Answer: SELECT MIN(clubs_remaining) FROM table_18328569_1 WHERE round = "Fourth round"