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: Barbie and Ken Phantom of the Opera Fao Schwartz Limited Collectible Edition
Product description: .
Product feature: Barbie and Ken Phantom of the Opera Fao Schwartz Limited Collectible Edition
Product price: $199.95
Product brand: Mattel
Target attributes: Battery Type
Answer: attribute: battery type
value: None
source: None