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: 1 Can of Future Essentials Powdered Yellow Cheddar Cheese
Product description: #2.5 Can / 13.5oz.Powdered cheeses make a great addition to your long term storage foods.Shelf Life 10+ Years, 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: $16.95
Product brand: Future Essentials
Target attributes: Variety
Answer: attribute: variety
value: cheddar
source: product title