<http://schema.org/headline>
"When it comes to free speech, Twitter is caught between a rock and a very hard place"^^<http://www.w3.org/2001/XMLSchema#string>
<http://gigaom.com/2013/07/30/when-it-comes-to-free-speech-twitter-is-caught-between-a-rock-and-a-very-hard-place/>