CREATE TABLE "round_13" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: Who was the home team when the away team scored 14.21 (105)?
SQL: SELECT "home_team_score" FROM "round_13" WHERE "away_team_score"='14.21 (105)';