Coupled to a specific syntax. If you need to describe your information in HTML documents with this kind of vocabulary, you might make use of the syntaxes RDFa and/or Microdata. Aprovecha la oferta de este publish y adquiere el módulo con un 10% de descuento con el código: ECO-SEO10 Google https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html