<http://schema.org/headline>
"Stephen Hawking unveils the most morbid, amazing $1.8m clock you'll ever see"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2008/09/21/stephen-hawking-unveils-the-most-morbid-amazing-1-8m-clock-you/>