What is the highest ranked nation with 15 silver medals and no more than 47 total?
CREATE TABLE table_33568 (
    "Rank" real,
    "Nation" text,
    "Gold" real,
    "Silver" real,
    "Bronze" real,
    "Total" real
)
SELECT MAX("Rank") FROM table_33568 WHERE "Silver" = '15' AND "Total" < '47'
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 highest ranked nation with 15 silver medals and no more than 47 total? ### Input: CREATE TABLE table_33568 (
    "Rank" real,
    "Nation" text,
    "Gold" real,
    "Silver" real,
    "Bronze" real,
    "Total" real
) ### Response: SELECT MAX("Rank") FROM table_33568 WHERE "Silver" = '15' AND "Total" < '47'