<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.rvusa.com/rvs-for-sale/2017/entegra-coach-diesel-pusher-45rbq-bath-12-luxury-rv-for-sale-mhsrv-diesel-pusher-new-alvarado-texas-76009-1971429>