<https://secure.gravatar.com/avatar/854315588ea6972aa0a911a160814113?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.salutebuongiorno.it/2021/03/cosa-e-come-conservare-in-frigo/>