<https://secure.gravatar.com/avatar/acabbc851077ace4c66d60672de6e460?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://chicagobroker.com/what-you-should-be-looking-for-from-new-landlords/>