Its aim is to supply site owners with only one prevalent vocabulary that contains markup that may be most useful to search engines like google and yahoo and users over the internet. Used Attribute Value - add the value of the used product's problem. Get the value from the attribute https://addons.prestashop.com/ru/seo-natural-search-engine-optimization/31857--rich-snippets-json-ld-opengraph-seo.html