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: Lexmark 200 Magenta Cartridge
Product description: Lexmark (#200) Office Edge Pro 4000 4000C 5500 5500T Magenta Return Program Ink Cartridge (500 Yield).
Product feature: Lexmark (#200) Office Edge Pro 4000 4000C 5500 5500T Magenta Return Program Ink Cartridge (500 Yield). Save Time Money and the Environment with Genuine Lexmark Supplies, Lexmark (#200) Office Edge Pro 4000 4000C 5500 5500T Magenta Return Program Ink Cartridge (500 Yield), OEM Ink 200 Magenta 500
Product price: $15.80
Product brand: Lexmark
Target attributes: Maximum Page Yield (Color)
Answer: attribute: maximum page yield (color)
value: None
source: None