<https://secure.gravatar.com/avatar/0221de436365fc9f0cadf0c1379daa77?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://frequentlyaskedquestions.info/which-of-the-following-constitutes-a-component-of-the-history/>