<http://schema.org/headline>
"Gabby Giffords to testify on measure for background checks"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.heraldnet.com/article/20140127/BLOG13/140129179/1031/Gabby-Giffords-to-testify-on-measure-for-background-checks>