<http://schema.org/dateModified>
"2013-05-11T14:26:17-04:00"^^<http://schema.org/Date>
<http://www.upi.com/Top_News/World-News/2013/05/11/Afghan-security-official-killed-by-roadside-bomb/UPI-18981368296777/?spt=hs&or=tn>