What was the away team when the result was 2–1 and home team was the bohemians?
CREATE TABLE "league" (
  "season" text,
  "date" text,
  "home_team" text,
  "result" text,
  "away_team" text,
  "stadium" text
);
SELECT "away_team" FROM "league" WHERE "result"='2–1' AND "home_team"='Bohemians';