<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.mironet.cz/ctech-cistici-uterka-z-mikrovlakna-v-hodnote-39-kc-cpm01r-15x18cm-cervena-promo+dp294430/>