<http://schema.org/description>
"AMA Pro Racing announced today its interest in a 450cc singles class for future AMA Pro Road Racing seasons. The purpose of the class..."^^<http://www.w3.org/2001/XMLSchema#string>
<https://ultimatemotorcycling.com/2009/07/05/2009_ama_pro_racing_450cc_singles_motorcycle_class/>