<http://schema.org/description>
"You&amp;#039;re probably familiar with high fidelity, or hi-fi audio, but what about high definition? What&amp;#039;s the difference? And which, if either, is better?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://electronics.howstuffworks.com/high-fidelity-high-definition1.htm>