<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/SearchAction>
<http://www.getdpi.com/forum/gear-fs-or-wtb/54347-fs-leica-50mm-1-4-asph-nikon-14-24mm-xpan-90mm-pentax-spotmeter.html>