<http://schema.org/dateModified>
"2014-02-21T11:01:57-05:00"^^<http://schema.org/Date>
<http://www.upi.com/Entertainment_News/TV/2014/02/21/Michelle-Obama-visits-The-Tonight-Show-in-New-York/UPI-60071392998517/?spt=rln&or=3>