<http://schema.org/headline>
"New S Stock Tube trains have started service on the Circle line, nine months after the first of 53 new vehicles was delivered to the Hammersmith &amp;#038; City line. The"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.globalrailnews.com/2013/09/03/s-stock-trains-take-to-circle-line/>