<http://schema.org/description>
"The Volkswagen Polo Bluemotion and Volkswagen Golf Bluemotion models are not only exempt from road tax but now they are also exempt from the London Congestion Charge"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.motoring.co.uk/car-news/no-congestion-charges-for-volkswagen-bluemotion-models_26107>