<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.pacetech.com/panasonic-toughbook-cf-31mk5-2-3ghz-i5-5300u-13-1-1024-x-768pixels-touchscreen-black-silver.html>