Funso (Chichewa): Kodi ndi maboma angati omwe anali mtengo wa chimanga wotsika kuposa 600?
Question (English): How many districts have recorded maize prices below 600?
Table: commodity_prices (difficulty: medium)
SQL: SELECT COUNT(DISTINCT district) FROM commodity_prices WHERE commodity = 'Maize' AND price < 600;
Result: [(15,)]