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: Royal Accessories Cloak and Crown for American Girl Dolls
Product description: Royal Accessories - Purple Cloak and Silver Crown for 18" American Girl Dolls. Doll not included.
Product feature: Purple Velvet Cloak, Silver crown with purple stone, Product is new in box, Fits all 18" Dolls like American Girl
Product price: $23.90
Product brand: CARPATINA
Target attributes: Type
Answer: attribute: type
value: american girl
source: product feature
attribute: type
value: dolls
source: product feature
attribute: type
value: doll
source: product description
attribute: type
value: american girl
source: product title
attribute: type
value: american girl
source: product description