Who was the first team when the second team was Kalise Gran Canaria?
CREATE TABLE "second_preliminary_round" (
  "team_num1" text,
  "agg" text,
  "team_num2" text,
  "1st_leg" text,
  "2nd_leg" text
);
SELECT "team_num1" FROM "second_preliminary_round" WHERE "team_num2"='kalise gran canaria';