CREATE TABLE "first_preliminary_round" (
  "team_num1" text,
  "agg" text,
  "team_num2" text,
  "1st_leg" text,
  "2nd_leg" text
);

Question: What is the 1st leg when the 2nd leg was 67-83?
SQL: SELECT "1st_leg" FROM "first_preliminary_round" WHERE "2nd_leg"='67-83';

Question: Which Team #1 had a 1st leg of 78-78?
SQL: SELECT "team_num1" FROM "first_preliminary_round" WHERE "1st_leg"='78-78';

Question: Who was Team #1 when Team #2 was galatasaray cc i̇stanbul?
SQL: SELECT "team_num1" FROM "first_preliminary_round" WHERE "team_num2"='galatasaray cc i̇stanbul';