CREATE TABLE "norwegian_clubs_performance_in_europe" (
  "team" text,
  "contest_and_round" text,
  "opponent" text,
  "1st_leg_score" text,
  "2nd_leg_score" text,
  "aggregate_score" text
);

Question: what was the name of the team opponent to elfsborg
SQL: SELECT "team" FROM "norwegian_clubs_performance_in_europe" WHERE "opponent"='Elfsborg';

Question: what is the score in the 1st leg where the contest and round was in europa league play off round
SQL: SELECT COUNT("1st_leg_score") FROM "norwegian_clubs_performance_in_europe" WHERE "contest_and_round"='Europa League Play Off Round';

Question: what is the name of the team which aggregate score is l 1–2
SQL: SELECT "team" FROM "norwegian_clubs_performance_in_europe" WHERE "aggregate_score"='L 1–2';

Question: what is the aggregate score for the europa league play off round contest and round
SQL: SELECT "aggregate_score" FROM "norwegian_clubs_performance_in_europe" WHERE "contest_and_round"='Europa League Play Off Round';