<http://schema.org/mentions>
"event photos, Jimmy Carlin, Jon Dickson, Louie Lopez, Riley Hawk, Shep Dawgs, Tony Hawk, Windsor James"^^<http://www.w3.org/2001/XMLSchema#string>
<http://skateboarding.transworld.net/photos/shep-dawgs-volume-3-premiere/?show=gallery&pid=38298>