<http://schema.org/description>
"Whistle while you work or play! These chewy whistlers can be fed for a tasty chew to your favorite 4-legged friend. Whistlers are made of 100% venison trachea and are a natural source of chondroitin sulfate."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.petflow.com/product/superior-farms/venison-whistlers-dog-chew>