<http://schema.org/dateModified>
"2013-07-18T21:34:23-04:00"^^<http://schema.org/Date>
<http://www.upi.com/Top_News/US/2013/07/18/Justice-Dept-Dont-return-George-Zimmermans-gun/UPI-55761374157666/?spt=hs&or=tn>