when was the number l6, with a fleet of black sea, launched?
CREATE TABLE table_name_86 (
    launched VARCHAR,
    fleet VARCHAR,
    number VARCHAR
)
SELECT launched FROM table_name_86 WHERE fleet = "black sea" AND number = "l6"
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: when was the number l6, with a fleet of black sea, launched? ### Input: CREATE TABLE table_name_86 (
    launched VARCHAR,
    fleet VARCHAR,
    number VARCHAR
) ### Response: SELECT launched FROM table_name_86 WHERE fleet = "black sea" AND number = "l6"