What is the production number for Bell Hoppy in the MM Series?
CREATE TABLE table_name_21 (
    production_number VARCHAR,
    series VARCHAR,
    title VARCHAR
)
SELECT COUNT(production_number) FROM table_name_21 WHERE series = "mm" AND title = "bell hoppy"
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 production number for Bell Hoppy in the MM Series? ### Input: CREATE TABLE table_name_21 (
    production_number VARCHAR,
    series VARCHAR,
    title VARCHAR
) ### Response: SELECT COUNT(production_number) FROM table_name_21 WHERE series = "mm" AND title = "bell hoppy"