<http://schema.org/headline>
"Sondheim's &lt;I&gt;Passion&lt;/I&gt; Opens at London's Donmar Warehouse Sept. 21"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.playbill.com/news/article/sondheims-passion-opens-at-londons-donmar-warehouse-sept.-21-171935>