user: Question: What is the 1st leg of team 1 Liverpool?
Columns: ['Team 1', 'Agg.', 'Team 2', '1st leg', '2nd leg']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Celtic', '2–4', 'Barcelona', '2–3', '0–1']
SQL:

assistant: SELECT "1st leg" FROM "Table" WHERE "Team 1" = 'Liverpool';