<http://schema.org/dateModified>
"2013-05-06T03:30:00-04:00"^^<http://schema.org/Date>
<http://www.upi.com/Science_News/Technology/2013/05/06/Obama-to-press-economic-agenda-on-day-trips/UPI-78901367825400/?spt=hts&or=1>