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: Washburn Hollowbody Electric Guitar
Product description: Hollowbody electrics use to be real expensive - an OSI breakthru
Product feature: Thin profile hollowbody guitar, Maple top, sides and back, Rosewood fingerboard, Chrome hardware, Humbucking pickups
Product brand: OSI
Target attributes: Guitar Type
Answer: attribute: guitar type
value: electric guitar
source: product title