What date is the crowd larger than 20,000?
CREATE TABLE table_55879 (
    "Home team" text,
    "Home team score" text,
    "Away team" text,
    "Away team score" text,
    "Venue" text,
    "Crowd" real,
    "Date" text
)
SELECT "Date" FROM table_55879 WHERE "Crowd" > '20,000'
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 date is the crowd larger than 20,000? ### Input: CREATE TABLE table_55879 (
    "Home team" text,
    "Home team score" text,
    "Away team" text,
    "Away team score" text,
    "Venue" text,
    "Crowd" real,
    "Date" text
) ### Response: SELECT "Date" FROM table_55879 WHERE "Crowd" > '20,000'