What is the least rank for the premier that assumed office on 17 may 1919 and was in office for 7 years, 335 days?
CREATE TABLE "historical_premiers" (
  "rank" real,
  "state" text,
  "premier" text,
  "party" text,
  "assumed_office" text,
  "left_office" text,
  "total_time_in_office" text
);
SELECT MIN("rank") FROM "historical_premiers" WHERE "total_time_in_office"='7 years, 335 days' AND "assumed_office"='17 may 1919';