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: Fever Student Full Size Nylon Classical String Guitar with Bag, Tuner and Strings, C055
Product description: This Student Beginner Nylon Classical Guitar with Gig Bag, Tuner and Strings provides quality and craftsmanship at affordable price. This Guitar delivers excellent tonal balance and thinner necks for extended comfort and playability. Classical body providing easier access to the frets for an extended tonal range. This Guitar is designed specifically to get beginning musicians started out on the right fret. A great guitar for students learning the ins and outs of classical guitar technique without breaking the bank. Full Size Guitar - 39 Inches, Classical body, Nylon string guitar. Guitar includes: Classical Guitar Gig Bag, Automatic Guitar Clip on Tuner and a Set of Extra Guitar Strings.
Product feature: Full Size Guitar - 39 Inches, Classical body, Nylon string guitar, Guitar includes: Classical Guitar Gig Bag and a Set of Extra Guitar Strings, Guitar includes: Automatic Guitar Clip on Tuner
Product price: $14.99
Product brand: Fever
Target attributes: Guitar Type
Answer: attribute: guitar type
value: classical
source: product title
attribute: guitar type
value: nylon string
source: product description
attribute: guitar type
value: nylon string
source: product feature
attribute: guitar type
value: classical
source: product feature