user: Question: What is the tie number when the away team is Lewes?
Columns: ['Tie no', 'Home team', 'Score', 'Away team', 'Attendance']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Darlington', '1 – 1', 'Northampton Town', '2,964']
SQL:

assistant: SELECT "Tie no" FROM "Table" WHERE "Away team" = 'Lewes';