What year is Winter Olympics when Holmenkollen is 1957, 1960?
CREATE TABLE table_21699 (
    "Winner" text,
    "Country" text,
    "Winter Olympics" text,
    "FIS Nordic World Ski Championships" text,
    "Holmenkollen" text
)
SELECT "Winter Olympics" FROM table_21699 WHERE "Holmenkollen" = '1957, 1960'
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 year is Winter Olympics when Holmenkollen is 1957, 1960? ### Input: CREATE TABLE table_21699 (
    "Winner" text,
    "Country" text,
    "Winter Olympics" text,
    "FIS Nordic World Ski Championships" text,
    "Holmenkollen" text
) ### Response: SELECT "Winter Olympics" FROM table_21699 WHERE "Holmenkollen" = '1957, 1960'