How many goals did the club from Hawthorn score in the 1971 season?
CREATE TABLE "most_goals_in_a_season" (
  "rank" text,
  "goals" text,
  "player" text,
  "club" text,
  "season" text
);
SELECT "goals" FROM "most_goals_in_a_season" WHERE "club"='hawthorn' AND "season"='1971';