Table schema:
CREATE TABLE table_name_31 (gold INTEGER, total VARCHAR, nation VARCHAR, rank VARCHAR, silver VARCHAR)

Question: What is the least number of Gold for a Rank smaller than 5, and 1 silver medal for Poland with more than 1 medal in total?
SQL: SELECT MIN(gold) FROM table_name_31 WHERE rank < 5 AND silver = 1 AND nation = "poland" AND total > 1