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: Oster 6791 12-Speed Blender, Black
Product description: Oster Blender Cube12SBlackGlass Jar
Product feature: Includes food processor attachment with three-cup capacity, Great for mincing and chopping, Extra durability from an exclusive all-metal drive system, Powerful 450-watt motor with pulse for precise blending control, Revolutionary blade is designed to toss, catch and shatter ice as it falls, for perfectly crushed ice
Product brand: Oster
Target attributes: Mixer Capacity
Answer: attribute: mixer capacity
value: None
source: None