Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: INKUTEN Hewlett Packard HP 94 (C8765WN) Black & HP 97 (C9363WN) Tri Color (Combo Pack of 2) Replacement Ink Cartridge
Product description: We carry a variety of Replacement Inkjet Cartridge models at the discount price with genuine quality and satisfaction. This high quality inkjet cartridge was professionally re-engineered in a manufacturing facility that uses state of the art processes to insure that this Inkjet Cartridge will print as well as the original. It will be ideal for professional images, photo prints, and quality output..
Product feature: 100% satisfaction guaranteed
Product price: $14.90
Product brand: INKUTEN
Target attributes: Maximum Page Yield (Black)
Answer: attribute: maximum page yield (black)
value: None
source: None