user: Question: Which Country has a Top Team of JAM, and an Edition of 31st?
Columns: ['Edition', 'Year', 'City', 'Country', 'Date', 'No. of Events', 'Top Team']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['1st', '1972 ( details )', 'Bridgetown', 'Barbados', 'April 1–4', 23.0, 'JAM']
SQL:

assistant: SELECT "Country" FROM "Table" WHERE "Top Team" = 'JAM' AND "Edition" = '31st';