Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Waterloo Industries M12918A10SS Lock
Product description: The Waterloo Industries M12918A10SS Lock fits model 596313 and model 658075. Item dimensions: length 4-Inch, width 2-Inch, height 1-Inch. Waterloo Industries, Inc. is the world's largest supplier of tool storage products. Waterloo maintains a focus on exceeding customer expectations by maintaining productivity while producing exceptional quality products, creating new features and relentlessly testing prototypes of new products for fatigue and durability.
Product feature: Waterloo lock, Fits model 596313, Fits model 658075, Item dimensions: length 4-Inch, width 2-Inch, height 1-Inch
Product brand: Waterloo
Target attributes: Power Type
Answer: attribute: power type
value: None
source: None