<https://secure.gravatar.com/avatar/d7f3cf74904bcd1acb5414eea9ced763?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://sustainabilitynook.com/washing-dishes-vs-using-paper-plates/>