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: Hewlett Packard Jornada 720 Extended Battery
Product feature: Extended-life battery for HP Jornada 720 Handheld PC, Provides 3 times the capacity of a standard battery, Perfect for long flights or marathon meetings, 90-day warranty, Black to match Jornada body
Product brand: Hewlett Packard
Target attributes: Capacity
Answer: attribute: capacity
value: None
source: None