<http://schema.org/mentions>
"David Gravette, Derby Park, Raven Tershy, Santa Cruz, Tim Brauch, Tom Grom, Wes Kremer"^^<http://www.w3.org/2001/XMLSchema#string>
<http://skateboarding.transworld.net/videos/transworlds-northern-adventure-part-3-video/?pid=23509>