<http://schema.org/datePublished>
"2013-12-17T06:45:18-05:00"^^<http://schema.org/Date>
<http://www.upi.com/Business_News/Energy-Industry/2013/12/17/Pro-energy-groups-laud-US-energy-revolution/UPI-92881387280718/?spt=rln&or=1>