<https://webrazzi.com/2016/09/29/slack-rakibi-facebook-at-work-10-ekimde-tanitilacak>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://webrazzi.com/2016/09/29/slack-rakibi-facebook-at-work-10-ekimde-tanitilacak>