Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: LEX18C0190 - Lexmark No. 2 Ink Cartridge - Color
Product description: Lexmark No. 2 Ink Cartridge - Color
Product feature: Sold as 1 Each., Genuine OEM quality., Generates optimum print quality.
Product price: $39.46
Product brand: Lexmark
Target attributes: Maximum Page Yield (Color)
Answer: attribute: maximum page yield (color)
value: None
source: None