<http://schema.org/description>
"A rotary engine is an internal combustion engine, but it&amp;#039;s not like the one in most cars. Learn about the unique rotary setup and how it compares performance-wise to a piston engine."^^<http://www.w3.org/2001/XMLSchema#string>
<http://auto.howstuffworks.com/rotary-engine1.htm>