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: TaylorMade Golf SpeedBlade HL Irons 4-PW AW - Steel
Product description: Low CG and added loft for higher trajectory. Each iron individually engineered to optimize distance and close the gap between longest iron and shortest metal wood. Advanced sound management system for improved feel wedge specific head designs for optimal greenside performance. Dark, matte finish for reduced glare and sleek appearance.
Product feature: Low cg and added loft for higher trajectory, Irons engineered to optimize distance and close the gap between longest iron and shortest metal wood, Dark, matte finish for reduced glare and sleek appearance
Product brand: TaylorMade
Target attributes: Set Type
Answer: attribute: set type
value: 4-pw
source: product title