<http://schema.org/mainEntityOfPage>
<http://blogs.wsj.com/marketbeat/2012/12/20/traders-react-to-ice-nyse-deal-were-naturally-a-little-nervous/tab/video/>
<http://blogs.wsj.com/marketbeat/2012/12/20/traders-react-to-ice-nyse-deal-were-naturally-a-little-nervous/tab/video/>