<http://schema.org/about>
"A new type of wind turbine is poised to leap onto the wind power scene, this time without blades, twice as efficient and half the price of conventional wind turbines."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/wind-technology/new-bladeless-wind-turbine-claimed-be-twice-efficient-conventional-designs.html>