<http://schema.org/dateModified>
"2012-04-18T11:02:53-04:00"^^<http://schema.org/Date>
<http://www.upi.com/Top_News/Special/2012/04/18/US-Boko-Haram-may-attack-Nigerian-capital/UPI-25731334761373/?rel=86111335978602>