<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.mironet.cz/trx-baterie-asus-5200-mah-pro-a32f82-k40-k50-k60-k70-x5-x65-x70+dp197661/>