user: Question: What was the 2nd leg fo the match that had a 1st leg of 1-3 and aggregate of 1-6?
Columns: ['Team 1', 'Agg.', 'Team 2', '1st leg', '2nd leg']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Botafogo (RJ)', '3-1', 'Corinthians (SP)', '1-0', '3-1']
SQL:

assistant: SELECT "2nd leg" FROM "Table" WHERE "1st leg" = '1-3' AND "Agg." = '1-6';