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: Samsung Standard Car Power Charger
Product description: The Samsung Standard Car Power Charger gives you the charging performance needed while traveling in your vehicle.
Product feature: Compatible with SCH-A310, SCH-A530, SCH-A530s, SCH-A790, SCH-A670, SCH-A650, SCH-A790, SPH-A790, 1 Year warranty
Product brand: Samsung
Target attributes: Maximum Output
Answer: attribute: maximum output
value: None
source: None