<https://secure.gravatar.com/avatar/8a75cdc903a2f2a27048cf72089341e3?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.cushyfamily.com/what-style-of-painting-did-vincent-van-gogh-use/>