<http://schema.org/description>
"Screw-drive vehicles have one feature in particular that stands out to give them their strange appearance. If you&amp;#039;re looking for a way to traverse large areas of snow, muck or mud, a screw-drive vehicle might be exactly what you need."^^<http://www.w3.org/2001/XMLSchema#string>
<http://auto.howstuffworks.com/screw-drive-vehicle-quiz.htm>