Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Disney Princess Sparkle Baby Cinderella Doll
Product description: Disney Princess Sparkle Baby Cinderella doll is based on the main character from the self-titled Disney movie. Any little girl who loves baby dolls or who is enthralled with the Disney Princesses will be delighted with this sweet baby doll. When girls feed the baby doll with her bottle, the bottle lights up and plays music! Her hair is styled with a ponytail, and her large, cartoonish eyes give the baby an adorable expression. Doll is dressed in her story book colors.
Product feature: Based on the main character from the self-titled Disney movie, Baby Cinderella doll is dressed in her story book colors, Bottle lights up and plays music when feeding the baby, Adorable features that girls will love, Perfect for nurturing play
Product brand: Mattel
Target attributes: Battery Type
Answer: attribute: battery type
value: None
source: None