user: Question: What was the first leg score in the match against Twente?
Columns: ['Round', 'Opposition', 'First leg', 'Second leg', 'Aggregate score']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1st', 'Aberdeen', '3–2 (a)', '6–3 (h)', '9–5']
SQL:

assistant: SELECT "First leg" FROM "Table" WHERE "Opposition" = 'Twente';