<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<http://gianhangvn.com/contactor-kava-cjx2-d115-cjx2-d150-cjx2-d170-cjx2-d205-kava-viet-nam-530554.html>