<http://schema.org/dateCreated>
"2013-02-21T05:17:04+0000"^^<http://schema.org/Date>
<http://www.reuters.com/article/2013/02/21/us-usa-calories-fastfood-idUSBRE91K04Q20130221?feedType=RSS&feedName=healthNews&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+reuters%2FhealthNews+%28Reuters+Health+News%29>