Funso (Chichewa): Kodi mtengo wapakatikati wa Chimanga ku Salima ndi uti?
Question (English): What is the average price of maize in Salima?
Table: commodity_prices (difficulty: easy)
SQL: SELECT AVG(price) FROM commodity_prices WHERE commodity = 'Maize' AND district = 'Salima';
Result: [(798.41875,)]