Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Harmony H54-RBS Electric Hollow Body Guitar
Product description: Harmony H54 hollow body electric guitar. This retro guitar not only looks like the original Harmony Rocket H54 guitar but it also sounds just like it. We have reproduced the looks and the sound of the mustache pickups originally used on the H54 guitar. Hi gloss red sunburst finish
Product feature: Maple body and neck Rosewood fingerboard, 2 Harmony Mustache pickups, Floating adjustable bridge 24 1/8 scale length Kluson tuners
Product brand: Harmony
Target attributes: Ukulele Type
Answer: attribute: ukulele type
value: None
source: None