<http://schema.org/headline>
"First day of spring: March 20, harbinger of hope, heat and hot times for all"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.eastbaytimes.com/2013/03/19/first-day-of-spring-march-20-harbinger-of-hope-heat-and-hot-times-for-all/>