<http://schema.org/headline>
"Proto Labs Announces the Full Exercise of the Underwriters&amp;#039; Option to Purchase Additional Shares and"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.aol.com/article/2012/11/21/proto-labs-announces-the-full-exercise-of-the-unde/20385926/?gen=1>