<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.mironet.cz/intel-core-i76850k-36ghz-tb-38ghz-6c12t-384kb-1536kb-15mb-20113-broadwelle-140w+dp299670/>