How many samples taken from producer Qingdao Suncare Nutritional Technology with a melamine content less than 53.4?
CREATE TABLE table_name_12 (
    samples_taken INTEGER,
    melamine_content_mg_kg_ VARCHAR,
    producer VARCHAR
)
SELECT SUM(samples_taken) FROM table_name_12 WHERE melamine_content_mg_kg_ < 53.4 AND producer = "qingdao suncare nutritional technology"
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: How many samples taken from producer Qingdao Suncare Nutritional Technology with a melamine content less than 53.4? ### Input: CREATE TABLE table_name_12 (
    samples_taken INTEGER,
    melamine_content_mg_kg_ VARCHAR,
    producer VARCHAR
) ### Response: SELECT SUM(samples_taken) FROM table_name_12 WHERE melamine_content_mg_kg_ < 53.4 AND producer = "qingdao suncare nutritional technology"