Question: Which Season has an Agg of 4–1, and an Opponent of Rapid Wien?
SQL: SELECT "Season" FROM "2-1515039-4" WHERE "Agg." = '4–1' AND "Opponent" = 'Rapid Wien';

Question: Which Home has an Opponent of Brøndby?
SQL: SELECT "Home" FROM "2-1515039-4" WHERE "Opponent" = 'Brøndby';

Question: Which Away has an Opponent of Slavia Prague?
SQL: SELECT "Away" FROM "2-1515039-4" WHERE "Opponent" = 'Slavia Prague';

Question: Which Away has a Competition of UEFA Cup, and an Opponent of Anderlecht?
SQL: SELECT "Away" FROM "2-1515039-4" WHERE "Competition" = 'UEFA Cup' AND "Opponent" = 'Anderlecht';

Question: Which Away has a Home of 2–2?
SQL: SELECT "Away" FROM "2-1515039-4" WHERE "Home" = '2–2';

Question: Which Away has a Season of 2001–02, and an Opponent of Dinaburg?
SQL: SELECT "Away" FROM "2-1515039-4" WHERE "Season" = '2001–02' AND "Opponent" = 'Dinaburg';