<http://schema.org/headline>
"A Performance Artist Takes on History, One Step &amp;#8212; and Tweet &amp;#8212; at a Time"^^<http://www.w3.org/2001/XMLSchema#string>
<http://blogs.wsj.com/scene/2012/05/31/a-performance-artist-who-rewrites-history-one-step-and-tweet-at-a-time/>