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: 1.50 ct TW Men's Princess Cut Diamond Wedding Band Ring in 18 Karat White Gold
Product description: Diamonds arent just for her on your wedding day and you can afford to have these magnificent gems in your ring too because our low wholesale direct prices allow you to have that flashy ring without spending all your pennies. Here weve made a diamond band featuring splendid princess cut diamonds set in a channel across this luxurious in 18 kt white gold ring. These stones are carefully matched for superior cut and top quality G white color and SI-1 eye clean clarity. The total weight of 1.50 carat rests beautifully in this handcrafted ring with splendid comfort fit rounding for a smooth feel on your hand.
Product feature: Shipping Information: View shipping rates and policies, ASIN: B07BKSF6MK, Item model number: MWB101418ND, Date first listed on Amazon: April 12, 2012, Average Customer Review: 5.0 out of 5 stars 1 customer review
Product price: $2,299.00
Product brand: Natural Diamonds of NYC
Target attributes: Silhouette
Answer: attribute: silhouette
value: wedding band
source: product title
attribute: silhouette
value: band
source: product description