What's the patent number of Fukuda?
CREATE TABLE table_name_21 (
    plant_patent_number VARCHAR
)
SELECT plant_patent_number FROM table_name_21 WHERE "inventor" = "fukuda"
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's the patent number of Fukuda? ### Input: CREATE TABLE table_name_21 (
    plant_patent_number VARCHAR
) ### Response: SELECT plant_patent_number FROM table_name_21 WHERE "inventor" = "fukuda"