CREATE TABLE "first_round" (
  "team_1" text,
  "agg" text,
  "team_2" text,
  "1st_leg" text,
  "2nd_leg" text
);

Question: What 1st leg has Alense Vivaldi (Trentino) as Agg.?
SQL: SELECT "1st_leg" FROM "first_round" WHERE "agg"='alense vivaldi (trentino)';