<http://schema.org/primaryImageOfPage>
"http://media.treehugger.com/assets/images/2011/10/02-hyundai-veloster-photo.jpg"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/slideshows/cars/detroit-auto-show-exclusive-whats-new-and-green-for-2011/page/2/>