<http://schema.org/dateModified>
"2013-01-29T13:56:20-05:00"^^<http://schema.org/Date>
<http://www.upi.com/Odd_News/2013/01/29/Pizzeria-helps-guardsman-with-wifes-B-day/UPI-78561359485780/?spt=hs&or=on>