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: Trident Mint Variety Gum, 16 Count
Product description: Chewing two pieces of trident sugar free gum after eating and drinking helps whiten teeth in as little as four weeks, freshen breath, prevent stains and fight cavities., TRIDENT ORIGINAL INGREDIENT DECLARATIONINGREDIENTS: SORBITOL, GUM BASE, XYLITOL, GLYCERIN, NATURAL AND ARTIFICIAL FLAVORING, MANNITOL; LESS THAN2% OF: ACESULFAME POTASSIUM, ASPARTAME, BHT (TO MAINTAIN FRESHNESS), SOY LECITHIN AND SUCRALOSE.PHENYLKETONURICS: CONTAINS PHENYLALANINE, N/A, 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: $16.98
Product brand: Trident
Target attributes: Type
Answer: attribute: type
value: mint
source: product title
attribute: type
value: gum
source: product title
attribute: type
value: gum
source: product description