<http://schema.org/about>
"From bike tours promoting green living in Japan to the World Naked Bike Ride, there are plenty of opportunities to take a pedal-powered-trip, and promote your favorite cause at the same time. Now young folks"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/bikes/activist-cyclists-call-for-100-renewables-in-10-years-video.html>