user: Question: What is the agg for a team second leg of 1-3?
Columns: ['Team 1', 'Agg.', 'Team 2', '1st leg', '2nd leg']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Abaluhya United', '4-2', 'Saint-George SA', '1-1', '3-1']
SQL:

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