Question: What was the first leg of the Semi-final?
SQL: SELECT "First leg" FROM "2-15717469-1" WHERE "Round" = 'Semi-final';

Question: What was the first leg score against Real Sociedad?
SQL: SELECT "First leg" FROM "2-15717469-1" WHERE "Opposition" = 'Real Sociedad';

Question: What was the first leg against Hibernian?
SQL: SELECT "First leg" FROM "2-15717469-1" WHERE "Opposition" = 'Hibernian';

Question: Who were the opposition in the Quarter-final?
SQL: SELECT "Opposition" FROM "2-15717469-1" WHERE "Round" = 'Quarter-final';