user: Question: Who was the away team on 31 January 1987 when the home team was Wimbledon?
Columns: ['Tie no', 'Home team', 'Score', 'Away team', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Chester City', '1–1', 'Sheffield Wednesday', '31 January 1987']
SQL:

assistant: SELECT "Away team" FROM "Table" WHERE "Date" = '31 January 1987' AND "Home team" = 'Wimbledon';