<http://schema.org/dateModified>
"2013-12-19T17:14:48-05:00"^^<http://schema.org/Date>
<http://www.upi.com/Science_News/2013/12/19/Researchers-say-valuable-scientific-data-disappearing-at-alarming-rate/UPI-70701387491288/?spt=mps&or=4>