<https://kriesi.at/themes/enfold-shop/product/grouped-custom-product/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://kriesi.at/themes/enfold-shop/shop/?filter_color=black%2Cpink%2Cblue&filter_size=medium%2Clarge%2Csmall&avia_extended_shop_select=yes&product_order=default>