user: Question: What is Opposing Teams, when Date is "11/10/1991"?
Columns: ['Opposing Teams', 'Against', 'Date', 'Venue', 'Status']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['Wales', 6.0, '19/01/1991', 'Cardiff Arms Park , Cardiff', 'Five Nations']
SQL:

assistant: SELECT "Opposing Teams" FROM "Table" WHERE "Date" = '11/10/1991';