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: Waring 7 Inch Light-Duty Quick Stik Immersion Blender (WSB33)
Product description: Quik Stik Immersion Blender, 12 qt. capacity, 7 Inch s/s fixed shaft, 2 speed fingertip control, 6 ft. cord w/3 prong plug, 120v/60/1, 100W, NSF, ETL
Product feature: WARING, Quik Stik Immersion Mixer, WSB33, High Quality, Weight: 2.636 lb
Product price: $7.90
Product brand: Waring
Target attributes: Design
Answer: attribute: design
value: immersion mixer
source: product feature
attribute: design
value: immersion blender
source: product description
attribute: design
value: immersion blender
source: product title