<https://tr.eduin.org/1361-how-to-turn-off-vibrate-notifications-for-new-calendar-invitations-on-the-iphone>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://tr.eduin.org/1361-how-to-turn-off-vibrate-notifications-for-new-calendar-invitations-on-the-iphone>