<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.rvusa.com/rvs-for-sale/2016/evergreen-rv-fifth-wheel-bay-hill-340rk-fifth-wheel-new-claremont-north-carolina-28610-1848123>