Who was the away team for the match with a home team of Citizen Team A?
CREATE TABLE "a_b_second_round" (
  "time" text,
  "home_team" text,
  "score" text,
  "away_team" text,
  "venue" text
);
SELECT "away_team" FROM "a_b_second_round" WHERE "home_team"='citizen team a';