<http://schema.org/about>
"Sometimes the same circumstances can produce different reactions. The first time that gas prices spiked in the past decade, after hurricane Katrina and the big commodities boom up to the 2008-2009 financial crisis, US drivers became paralyzed."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/cars/high-gas-prices-having-different-effect-us-drivers-time.html>