Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Fender Blues Deville Harmonica, Key of G
Product description: The Fender Blues Deville harmonica is designed to sound as good as the Fender brand name would suggest. Its richer tone and pitch is made possible with a molded PVC comb and precision phosphor bronze reeds. Traditional shape and black satin covers will make your harmonica look as good as it sounds. Reed plates are also replaceable. Includes vented hard plastic case.
Product feature: Key of G, Designed to sound as good as the Fender brand name would suggest, Its richer tone and pitch is made possible with a molded PVC comb and precision phosphor bronze reeds, Traditional shape and black satin covers will make your harmonica look as good as it sounds, Includes vented hard plastic case
Product price: $7.99
Product brand: Fender
Target attributes: Quantity
Answer: attribute: quantity
value: None
source: None