Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Plymouth Superwash Worsted 67 Medium Charcoal
Product description: Plymouth Worsted Merino Superwash Yarn - Color: Med Charcoal; Color Number: 067; Dye Lot: 6501; Yarn Weight: Aran / Worsted [4]; Fiber Content: 100% Superwash Fine Merino Wool; Yardage: 218 yards in 100 grams; Gauge: 5 stitches = 1" on US 7 needles; Ply: Plied; Texture: Smooth; Color Style: Solid; Care: Machine Wash, Machine Dry Low. An incredibly soft 100% superwash fine merino wool worsted weight yarn in many beautiful colors. Buy Plymouth Worsted Merino Superwash Yarn, Plymouth Yarn, Yarn online and enjoy fast Free Shipping, Discounts and Daily Deals on Knitting, Crochet and Spinning supplies when you shop at Dizzy Sheep.
Product feature: Plymouth Superwash Worsted 67 Medium Charcoal
Product price: $14.99
Product brand: Plymouth
Target attributes: Wool Type
Answer: attribute: wool type
value: merino wool
source: product description
attribute: wool type
value: merino
source: product description