How many Ties have Years of 1919–1925, and a Pct larger than 0.734?
CREATE TABLE "head_coaching_history" (
  "name" text,
  "years" text,
  "wins" real,
  "losses" real,
  "ties" real,
  "pct" real
);
SELECT SUM("ties") FROM "head_coaching_history" WHERE "years"='1919–1925' AND "pct">0.734;