<https://secure.gravatar.com/avatar/fd83fe1a65e18d3c590f3ab3c5a9562d?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://planningtank.com/city-insight/urban-planning-covid-19-coronavirus>