<http://schema.org/about>
"Take a looksy at this cute little chart, if only to see how little progress there's been in fuel efficiency over the last 100 years. As you can see, we figured out how to produce cars that get 40 or so"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/cars/the-last-100-years-in-fuel-efficiency-infographic.html>