<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.beat-it.nl/hp-16gb-1x16gb-ddr4-2133-non-ecc-ram-16gb-ddr4-2133mhz-geheugenmodule-t0e52at>