<http://schema.org/mainEntityOfPage>
<http://www.charlestoncitypaper.com/PressTime/archives/2009/04/20/green-google-maps-feature-walking-public-transit-directions>
<http://www.charlestoncitypaper.com/PressTime/archives/2009/04/20/green-google-maps-feature-walking-public-transit-directions>