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: Trader Joe's Creamy Unsalted Peanut Butter From Unblanched Peanuts
Product description: Trader Joe's Creamy Unsalted Peanut Butter From Unblanched Peanuts, Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
Product price: $10.98
Product brand: Trader Joe's
Target attributes: Variety
Answer: attribute: variety
value: peanut butter
source: product title
attribute: variety
value: peanut butter
source: product description