<http://schema.org/dateModified>
"2014-01-09T14:02:47-05:00"^^<http://schema.org/Date>
<http://www.upi.com/Science_News/2014/01/09/Research-Aquatic-plant-life-can-help-clean-up-radioactive-pollution/UPI-48191389294167/?spt=rln&or=4>