<http://schema.org/mainEntityofPage>
<http://aolblog.aol.com/2011/05/15/coverage-launch-why-trefis-thinks-dupont-stock-is-undervalued/>
<http://www.aol.com/article/2011/05/15/coverage-launch-why-trefis-thinks-dupont-stock-is-undervalued/19936676/?gen=1>