What is the average number of silvers for nations with over 1 bronze medal?
CREATE TABLE table_53875 (
    "Nation" text,
    "Gold" real,
    "Silver" real,
    "Bronze" real,
    "Total" real
)
SELECT AVG("Silver") FROM table_53875 WHERE "Bronze" > '1'
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 average number of silvers for nations with over 1 bronze medal? ### Input: CREATE TABLE table_53875 (
    "Nation" text,
    "Gold" real,
    "Silver" real,
    "Bronze" real,
    "Total" real
) ### Response: SELECT AVG("Silver") FROM table_53875 WHERE "Bronze" > '1'