CREATE TABLE "fourth_round_proper" (
  "tie_no" text,
  "home_team" text,
  "score" text,
  "away_team" text,
  "date" text
);

Question: What is Tie No., when Away Team is "Manchester United"?
SQL: SELECT "tie_no" FROM "fourth_round_proper" WHERE "away_team"='manchester united';

Question: What is Away Team, when Home Team is "Ipswich Town", and when Date is "6 February 1986"?
SQL: SELECT "away_team" FROM "fourth_round_proper" WHERE "home_team"='ipswich town' AND "date"='6 february 1986';

Question: What is Date, when Home Team is "Luton Town"?
SQL: SELECT "date" FROM "fourth_round_proper" WHERE "home_team"='luton town';

Question: What is Away Team, when Date is "25 January 1986", and when Tie No is "6"?
SQL: SELECT "away_team" FROM "fourth_round_proper" WHERE "date"='25 january 1986' AND "tie_no"='6';