CREATE TABLE "first_round_proper" (
  "tie_no" text,
  "home_team" text,
  "score" text,
  "away_team" text,
  "attendance" text
);

Question: What is the Home team with an Away team that is oxford united?
SQL: SELECT "home_team" FROM "first_round_proper" WHERE "away_team"='oxford united';

Question: What is the Home team with an Away team that is wrexham?
SQL: SELECT "home_team" FROM "first_round_proper" WHERE "away_team"='wrexham';