<http://schema.org/datePublished>
"2013-09-09T12:39:58-04:00"^^<http://schema.org/Date>
<http://www.upi.com/Entertainment_News/TV/2013/09/09/Superheroes-A-Never-Ending-Battle-to-air-on-PBS-Oct-15/UPI-51101378744798/>