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: Hanna Andersson Little Boy Kids Very Güd Sweatpants In 100% Cotton
Product description: The original long-playing Hanna sweats are crafted from our nearly indestructible cotton French terry, with soft loops inside for irresistible comfort right from the dryer. Truly Hanna-me-down quality.
Product feature: Imported, 100% combed cotton French terry knit, Super-smooth flatlock seams, Comfy encased stretch waist, Sizes 80-100 without pockets for comfort, Soft ribbed cuffs, ASIN: B00K5Z530C, Date first listed on Amazon: August 26, 2016, Average Customer Review: 3.6 out of 5 stars 5 customer reviews
Target attributes: Length
Answer: attribute: length
value: None
source: None