What is the largest number in attendance at H venue opposing Liverpool with a result of D?
CREATE TABLE "match_details" (
  "date" text,
  "league_position" text,
  "opponents" text,
  "venue" text,
  "result" text,
  "score_f_a" text,
  "attendance" real
);
SELECT MAX("attendance") FROM "match_details" WHERE "venue"='h' AND "result"='d' AND "opponents"='liverpool';