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: New MTN Commercial Large Ice Shaver Smasher Crusher Sno Snow Cone Maker
Product description: High Quality Commercial Portable Ice Shaver Crusher.
Product feature: Commercial Portable Ice Shaver is perfect for store, party, company event or home use., Generate 440LBS Per hour !!!, Sleek eye-catching shape is perfect to keep on a tabletop, Waterproof "On/Off" switch, Rotation Speed: 2500 RPM
Product brand: MTN Gearsmith
Target attributes: Type
Answer: attribute: type
value: commercial
source: product feature
attribute: type
value: commercial
source: product description
attribute: type
value: commercial
source: product title