Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Milwaukee 2655-20 M18 Fuel 1/2" Impact Wr
Product description: M18 Fuel 1/2" Impact Wr. The Product is Easy to Use and Easy to Handle. The Product is Highly Durable. Made In China.
Product feature: M18 Fuel 1/2" Impact Wr, The product is easy to use and easy to handle, The product is highly durable
Product brand: Milwaukee
Target attributes: Maximum Speed
Answer: attribute: maximum speed
value: None
source: None