<https://secure.gravatar.com/avatar/4a9b688b7e19ed801c561aa6bce4773b?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.advancedcpc.com/blog/3-solutions-to-increase-your-android-office-productivity-with-streamlined-apps/>