<http://schema.org/dateModified>
"2013-05-16T14:14:54-04:00"^^<http://schema.org/Date>
<http://www.upi.com/Top_News/US/2013/05/16/Obama-queried-on-AP-investigation-takes-tough-line/UPI-27351368728094/?st_rec=32021368687600>