<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.rvusa.com/rvs-for-sale/2017/winnebago-travel-trailer-1706fb-call-for-the-lowest-price-front-queen-bed-travel-trailer-new-turlock-california-95382-1921976>