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: Oasis Supply Sugar Free Caramel Popcorn, 1 Pound
Product description: Sugar free caramel popcorn has all the flavor of old-fashioned glazed caramel corn so even those on a low sugar diet can still indulge in this sweet classic treat., Manufactured on equipment used to process Dairy, Peanut, Almond, Walnut, Pecan, Nutmeg and Soy Protein., Isomalt Syrup, Popcorn, Palm Oil, Salt, Artificial Flavor, Coloring, Soya Lecithin, Ace K. Manufactured on equipment used to process Dairy, Peanut, Almond, Walnut, Pecan, Nutmeg and Soy Protein., 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 brand: Oasis Supply
Target attributes: Flavor
Answer: attribute: flavor
value: caramel
source: product title
attribute: flavor
value: caramel
source: product description