Name the date that has a friendly competition at rheinpark stadion, vaduz
CREATE TABLE table_name_71 (
    date VARCHAR,
    competition VARCHAR,
    venue VARCHAR
)
SELECT date FROM table_name_71 WHERE competition = "friendly" AND venue = "rheinpark stadion, vaduz"
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: Name the date that has a friendly competition at rheinpark stadion, vaduz ### Input: CREATE TABLE table_name_71 (
    date VARCHAR,
    competition VARCHAR,
    venue VARCHAR
) ### Response: SELECT date FROM table_name_71 WHERE competition = "friendly" AND venue = "rheinpark stadion, vaduz"