Who won the Silver the Year Katie Curtis Unknown won the Bronze?
CREATE TABLE table_name_28 (
    silver VARCHAR,
    bronze VARCHAR
)
SELECT silver FROM table_name_28 WHERE bronze = "katie curtis unknown"
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: Who won the Silver the Year Katie Curtis Unknown won the Bronze? ### Input: CREATE TABLE table_name_28 (
    silver VARCHAR,
    bronze VARCHAR
) ### Response: SELECT silver FROM table_name_28 WHERE bronze = "katie curtis unknown"