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: Hamilton Beach 47225 Brewstation Coffeemaker
Product description: Hamilton Beach Brewstation Coffeemaker uses a fully enclosed internal brew system to make 12 -cups of coffee ,stored it in a double wall thermal tank, and dispenses a cup at time , for the best coffee flavor & taste. No carafe to break .
Product feature: 12-cup capacity, single serve dispenser valve, No carafe to break, keeps coffee fresh for 2 hours, in line water filter
Product brand: Hamilton Beach
Target attributes: Brew Style
Answer: attribute: brew style
value: None
source: None