<http://schema.org/headline>
"David Tennant, Billie Piper for &amp;#039;Doctor Who&amp;#039; 50th special"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/tv/doctor-who/news/a469513/david-tennant-billie-piper-for-doctor-who-50th-special/>