What is the route that has a rank higher than 63, and Separation Summit as its mountain pass?
CREATE TABLE table_10259 (
    "Rank" real,
    "Mountain Pass" text,
    "State" text,
    "Elevation" text,
    "Route" real
)
SELECT SUM("Route") FROM table_10259 WHERE "Rank" > '63' AND "Mountain Pass" = 'separation summit'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the route that has a rank higher than 63, and Separation Summit as its mountain pass? ### Input: CREATE TABLE table_10259 (
    "Rank" real,
    "Mountain Pass" text,
    "State" text,
    "Elevation" text,
    "Route" real
) ### Response: SELECT SUM("Route") FROM table_10259 WHERE "Rank" > '63' AND "Mountain Pass" = 'separation summit'