<http://schema.org/mentions>
"Colorado, Gjermund Braaten, Keystone, Len Jorgensen, Norway, Stale Sandbech, torstein horgmo, Ulrik Badertscher"^^<http://www.w3.org/2001/XMLSchema#string>
<http://snowboarding.transworld.net/photos/norway-invades-keystone/?show=gallery&pid=48471>