user: Question: Who played the away team Derby County?
Columns: ['Tie no', 'Home team', 'Score', 'Away team', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Notts County', '1–2', 'Everton', '10 March 1984']
SQL:

assistant: SELECT "Home team" FROM "Table" WHERE "Away team" = 'Derby County';