Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How many samples taken from producer Qingdao Suncare Nutritional Technology with a melamine content less than 53.4?

### Inputs:
table_name: table, columns: ['Producer', 'Product', 'Samples taken', 'Samples failed', 'Melamine content(mg/kg)']

### Response:
SELECT SUM Samples taken FROM table WHERE Melamine content(mg/kg) < 53.4 AND Producer = qingdao suncare nutritional technology