<http://schema.org/about>
"The Pedestrian and Bicycle Information Center has release its list of the most pedestrian-friendly cities in the US, with 11 getting rankings from Platinum to Bronze and 8 more getting 'honorable mentions'. Only one"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/cars/the-11-most-walkable-cities-in-the-us.html>