<http://schema.org/datePublished>
"2013-02-15T16:31:03-05:00"^^<http://schema.org/Date>
<http://www.upi.com/Top_News/World-News/2013/02/15/Clashes-erupt-between-protesters-police/UPI-26951360963863/?spt=hs&or=tn>