Who played against Hapoel tel aviv when they were team #1?
CREATE TABLE "preliminary_round_ii" (
  "team_num1" text,
  "agg" text,
  "team_num2" text,
  "1st_leg" text,
  "2nd_leg" text
);
SELECT "team_num2" FROM "preliminary_round_ii" WHERE "team_num1"='hapoel tel aviv';