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

Question: Which 2nd leg has a 1st leg of 1-1 and is Team 1 djoliba ac?
SQL: SELECT "2nd_leg" FROM "second_round" WHERE "1st_leg"='1-1' AND "team_1"='djoliba ac';

Question: What Team 1 has union douala as Team 2?
SQL: SELECT "team_1" FROM "second_round" WHERE "team_2"='union douala';