<http://schema.org/dateModified>
"2013-05-16T09:49:04-04:00"^^<http://schema.org/Date>
<http://www.upi.com/Entertainment_News/TV/2013/05/16/Pharrell-to-be-a-mentor-on-Rihannas-Styled-to-Rock-show/UPI-93141368712144/>