<http://schema.org/description>
"Smoke detectors save thousands of lives every year. A fire can start in the most unexpected places, so it is important to be prepared. Take this smoke detector quiz to see how much you know about these life-saving tools."^^<http://www.w3.org/2001/XMLSchema#string>
<http://home.howstuffworks.com/home-improvement/household-safety/fire/smoke-detectors-quiz13.htm>