<http://schema.org/headline>
"Apple unveils new MacBook Airs with huge battery life: 9 hours on 11 inch, 12 hours on 13 inch"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apple/2013/06/10/apple-2013-wwdc-keynote-new-macbook-air/>