<http://schema.org/headline>
"Dropbox announces its first developer conference \u2018DBX\u2019 in San Francisco on July 9th"^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/insider/2013/05/06/dropbox-announces-dbx-its-first-developer-conference-joining-the-crowd-of-tech-companies-who-host-their-own-shindig/>