<http://schema.org/about>
"Not too long ago our very own Lloyd Alter pointed out that walking matters. And that a walkable community promotes better health, a reduction in greenhouse gases, a variety of transportation options, increased social capital and stronger local"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/walk-score-ranks-the-top-10-most-walkable-cities-in-the-us.html>