<https://www.petsfriendsshop.com/product/3220/Product-3220>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.petsfriendsshop.com/product/3220/akvaariohiekka-firenza-harmaa-hieno-8-kg-1-3-mm>