<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.rvusa.com/rvs-for-sale/2017/thor-motor-coach-toy-hauler-37rb-26k-chassis-patio-3-ac-pwr-bunk-4-tvs-toy-hauler-new-alvarado-texas-76009-1927380>