What is Away Team, when Date is "25 January 1986", and when Tie No is "6"?
CREATE TABLE "fourth_round_proper" (
  "tie_no" text,
  "home_team" text,
  "score" text,
  "away_team" text,
  "date" text
);
SELECT "away_team" FROM "fourth_round_proper" WHERE "date"='25 january 1986' AND "tie_no"='6';