<http://schema.org/about>
"A 'clunker' is a vehicle reaching less than 18 mpg. Check out the top 10 clunkiest clunkers here."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/transportation/photos/top-10-cash-for-clunkers-trade-ins/clunkety-clunk-clunk>