user: Question: Which competition has a Year of 2008, a Surface of carpet, and a Date of 31 Jan?
Columns: ['Year', 'Competition', 'Date', 'Surface', 'Location', 'Score', 'Result']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [2007.0, 'Europe/Africa Zone Group I Pool C', '18 Apr', 'clay', 'Plovdiv , Bulgaria', '3 : 0', 'Won']
SQL:

assistant: SELECT "Competition" FROM "Table" WHERE "Year" = 2008.0 AND "Surface" = 'carpet' AND "Date" = '31 Jan';