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: Ghirardelli Chocolate Squares Premium Chocolate Assortment 9.83 oz.
Product description: 160 Years of Quality Chocolate Ghirardelli Chocolate Company proudly manufactures high quality, premium chocolate products in the U.S.A. Incorporated in 1852 and in continuous operation since, Ghirardelli has the richest heritage of any American chocolate company. Ghirardelli is one of the few chocolate companies that controls the entire chocolate manufacturing process, from cocoa bean to finished product. This control over the manufacturing process, combined with Ghirardelli's proprietary bean blend and unique methods of roasting and processing, ensures that you are rewarded with the highest quality and richest products. Ghirardelli's product line includes its signature chocolate squares, chocolate bars, baking chocolate and chocolate beverages. Try them today., Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
Product brand: Ghirardelli
Target attributes: Sugar Content
Answer: attribute: sugar content
value: None
source: None