<http://schema.org/dateModified>
"2013-05-13T17:38:57-04:00"^^<http://schema.org/Date>
<http://www.upi.com/Health_News/2013/05/13/Small-amounts-of-formula-may-prolong-breastfeeding-time/UPI-34441368481137/?spt=hs&or=hn>