<http://schema.org/query-input>
"required"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pocket-lint.com/news/123443-griffin-s-redesigned-multidock-charger-is-for-the-gadget-obsessed-one-space-to-charge-10-to-30-devices/gallery?photo=7>