<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.pfister.ch/it/produktdetail/7907788/Catalogo/Accessori-d%27arredo-%26-decorazioni/Fiori-artificiali/Ramo-di-orchidea-Kunstblume>