user: Question: What was the Against when the Opposing Team was Sheffield Wednesday?
Columns: ['Opposing Team', 'Against', 'Date', 'Venue', 'Round']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['Stockport County', 0.0, '8 January 1949', 'H', '3rd Round']
SQL:

assistant: SELECT "Against" FROM "Table" WHERE "Opposing Team" = 'Sheffield Wednesday';