<http://schema.org/description>
"When purchasing brake rotors, there are several different types from which to choose. For example, there are driller brake rotors, slotted brake rotors, performance brake rotors and more. How knowledgeable are you when it comes to brake rotors?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://auto.howstuffworks.com/auto-parts/brakes/brake-quizzes/types-of-brake-rotors-quiz.htm>