<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.mironet.cz/fellowes-koleckova-rezacka-electron-a3-kapacita-rezani-az-8-listu-80g-papiru-delka-rezu-460-mm+dp240878/>