<http://schema.org/availability>
"http://schema.org/InStock"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.pfister.ch/fr/produktdetail/7001162/Catalogue/Linge-de-maison/Rideau-pr%C3%AAt-%C3%A0-poser/Filo-Rideau-%C3%A0-fils>