<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.pfister.ch/fr/produktdetail/7467674/Catalogue/Accessoires-de-cuisine/Cuisiner-&-gratiner/Pr%C3%A9paration-pour-cupcake-Weck>