<http://schema.org/headline>
"A Facebook of the Future: Mark Zuckerberg and Sheryl Sandberg Show Us Their New Content, New Algorithms, and New Alliances"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.vanityfair.com/news/business/2013/05/facebook-future-mark-zuckerberg-sheryl-sandberg>