<https://secure.gravatar.com/avatar/1457648c29d91da27f09b5d71dd7b6d2?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://eko-ingener.com/pochemu-burenie-na-mgbu-dorozhe-chem-burenie-na-urb/>