<http://schema.org/priceCurrency>
"USD"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pricegrabber.com/electronics/headphones-headsets++grado-professional-ps1000-headphone-stereo-black-silver-phono-wired-32/m-743134638/?ut=36a0b622712037cf>