<http://schema.org/dateModified>
"2013-02-05T06:27:25-05:00"^^<http://schema.org/Date>
<http://www.upi.com/Business_News/Energy-Industry/2013/02/05/Methane-gas-leak-sparked-Pemex-blast/UPI-65181360063645/?rel=64661360080106>