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: 5PCS Littlest Pet Shop Cute Cat Dog Loose Figures Random Child Girl Toys
Product description: magnetic and bobble head toys
Product feature: Plastic, Original, Random, Mostly magnetic
Product brand: LITTLESTONE
Target attributes: Theme
Answer: attribute: theme
value: None
source: None