<http://schema.org/about>
" Graphic (bad bridges within 10 miles of San Francisco are in red) via Transportation for America. Transportation for America knows a very interesting factoid that affects practically everyone. In the United States, deficient bridge structures outnumber"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/infrastructure/guess-does-the-us-have-more-bad-bridges-or-more-mcdonalds-restaurants.html>