<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.beat-it.nl/microsoft-ops-mgr-entopsmgmtlic-olvnl-software-assurance-step-up-acquired-yr-2-1-enterprise-ml-en-uas-00263>