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: INDIANA ISP-SL Acoustic Guitar, Silver
Product description: Looking for a great guitar to give you that rock star look. Your search is over, the Indiana ISP SL silver glitter guitar will put the sparkle in your playing. But don't worry you don't have to give up any quality for the sake of looks.
Product feature: High Gloss Sparkle Glitter Finish, Rosewood fretboard and bridge, Nickle silver frets, Spruce Top mahogany back and sides
Product brand: INDIANA
Target attributes: Ukulele Type
Answer: attribute: ukulele type
value: None
source: None