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: Laurey 1842 1 1/2-Inch Porcelain Knob, White with Ring
Product description: 1 1/2" Porcelain Knob - White with Ring. Includes Mounting Hardware. Lifetime Guarantee. Finest quality cabinet hardware., 1 1/2" Porcelain Knob - White with Ring. Includes Mounting Hardware.Lifetime Guarantee.Finest quality cabinet hardware.
Product feature: Includes Mounting Hardware, Lifetime Guarantee, Finest quality cabinet hardware
Product price: $3.99
Product brand: Laurey
Target attributes: Knob Shape
Answer: attribute: knob shape
value: None
source: None