Question: Who was the opponent at Ullevi?
SQL: SELECT "Opponents" FROM "2-16514823-2" WHERE "Venue" = 'Ullevi';

Question: When was Göteborg the opponent with a score of 3-1?
SQL: SELECT "Date" FROM "2-16514823-2" WHERE "Opponents" = 'Göteborg' AND "Score" = '3-1';