user: Question: When Estudiantes was team #2, what was their agg. value?
Columns: ['Team #1', 'Agg.', 'Team #2', '1st leg', '2nd leg']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['CSKA Sofia', '151–200', 'Real Madrid', '73-103', '78-97']
SQL:

assistant: SELECT "Agg." FROM "Table" WHERE "Team #2" = 'Estudiantes';