<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.mironet.cz/asus-rog-maximus-viii-gene-z170-lga-1151-4x-ddr4-2x-pciex16-pciex4-m2+dp263159/>