CREATE TABLE "paved_mountain_passes_and_highway_summit" (
  "rank" real,
  "mountain_pass" text,
  "state" text,
  "elevation" text,
  "route" real
);

Question: What is the route that has a rank higher than 63, and Separation Summit as its mountain pass?
SQL: SELECT SUM("route") FROM "paved_mountain_passes_and_highway_summit" WHERE "rank">63 AND "mountain_pass"='separation summit';