<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/AggregateRating>
<http://www.pricegrabber.com/appliances/air-purifiers++iqair-healthpro-plus-hepa-air-purifier/m-5704709/?ut=6b159489ac176d1d>