<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.mironet.cz/asus-b85plus-usb-31-b85-1150-4x-ddr3-2x-pciex16-2x-pciex1-3x-pci-atx+dp241743/>