What is the highest rank for a nation with 26 golds and over 17 silvers?
CREATE TABLE "medal_count" (
  "rank" real,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT MAX("rank") FROM "medal_count" WHERE "gold"=26 AND "silver">17;