<http://schema.org/about>
"Amid all the air travel horror stories, there's some good news. Imagine boarding a flight in less than four minutes. Dr. John Steffen, an astrophysicist, says h"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/transportation/videos/astrophysicist-solves-mystery-of-slow-plane-boarding>