<http://schema.org/dateModified>
"2013-08-03T16:29:24-04:00"^^<http://schema.org/Date>
<http://www.upi.com/Science_News/2013/08/03/Study-Well-contamination-near-gas-drilling-sites-not-from-fracking/UPI-23551375561764/?rel=39461376049884>