<http://schema.org/dateModified>
"2013-10-03T19:28:55-04:00"^^<http://schema.org/Date>
<http://www.upi.com/Science_News/2013/10/03/Toxic-metal-selenium-said-a-risk-to-honeybees-critical-to-agriculture/UPI-53121380842935/?st_rec=38721380917957>