user: Question: Which away team played against Peterborough United, with a tie no of Replay?
Columns: ['Tie no', 'Home team', 'Score', 'Away team', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Enfield', '1–1', 'Leyton Orient', '19 November 1988']
SQL:

assistant: SELECT "Away team" FROM "Table" WHERE "Tie no" = 'Replay' AND "Home team" = 'Peterborough United';