<http://schema.org/about>
"What happens when we change our fuel, but not our engines?  Well, nobody really knows the details, and that's the problem. We have seen that today's combustion engines cause a wide range of pollution, and as we consider the switch from diesel to"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/cars/cleaner-burning-engines-thanks-to-lasers.html>