<http://schema.org/about>
"Southern India has a zero-emissions ride that is equally as good for laughs as it is for the environment. A fun fair operator created a ferris wheel that is human-powered. A team of men take turns hopping on the top of the"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/renewable-energy/the-ultimate-carnival-ride-a-human-powered-ferris-wheel.html>