Table: euro_cup_match
Columns: round
club
home
away
aggregate

Question: Which club had round of group stage round 1 and 5?
SQL: SELECT "club" FROM euro_cup_match WHERE "round" = 'group stage round 1 and 5'

Question: What is the aggregate for the first round for K.S.V. Waregem?
SQL: SELECT "aggregate" FROM euro_cup_match WHERE "round" = 'first round' AND "club" = 'k.s.v. waregem'

Question: What is the away where the round is the second round?
SQL: SELECT "away" FROM euro_cup_match WHERE "round" = 'second round'