Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Cerwin-Vega H4652 300W 6.5" 2-Way HED Series Coaxial Car Speakers
Product description: Cerwin-Vega H4652 300W 6.5" 2-Way HED Series Coaxial Car Speakers
Product feature: 6.5" 2-Way HED Series Coaxial Car Speakers, 300W
Product brand: CERWIN VEGA
Target attributes: Channels
Answer: attribute: channels
value: 2-way
source: product feature
attribute: channels
value: 2-way
source: product title
attribute: channels
value: 2-way
source: product description