What is the result of men's doubles when there was no competition?
CREATE TABLE table_19684 (
    "Year" real,
    "Mens singles" text,
    "Womens singles" text,
    "Mens doubles" text,
    "Womens doubles" text,
    "Mixed doubles" text
)
SELECT "Mixed doubles" FROM table_19684 WHERE "Mens doubles" = 'no competition'
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 result of men's doubles when there was no competition? ### Input: CREATE TABLE table_19684 (
    "Year" real,
    "Mens singles" text,
    "Womens singles" text,
    "Mens doubles" text,
    "Womens doubles" text,
    "Mixed doubles" text
) ### Response: SELECT "Mixed doubles" FROM table_19684 WHERE "Mens doubles" = 'no competition'