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: Another Year of Fabulous 60th Birthday Party Adult Birthday Party Napkins, Pack of 16, Pink/Black , 5"x5" Paper
Product description: Rock it at 60! Have these banner show 60 is the new sexy.. Guaranteed to add fun to the festivity of your Birthday, anniversary or any fun celebration.
Product feature: Printed Napkins, Another Year of Fabulous Theme, Measures 5 in. X 4.6 in., Party essential
Product price: $3.34
Product brand: Amscan
Target attributes: Style
Answer: attribute: style
value: None
source: None