<http://schema.org/dateModified>
"2013-07-30T11:33:48-04:00"^^<http://schema.org/Date>
<http://www.upi.com/Top_News/World-News/2013/07/30/Survey-finds-British-are-slightly-happier-this-year/UPI-24471375198428/?st_rec=32341386003409>