<http://schema.org/description>
"If everybody had an ocean, across the U.S.A, they&amp;#039;d be too busy building floating bridges to play on silly surfboards. Floating bridges are indispensable tools for spanning areas other bridges can&amp;#039;t. Ready to take on our bridge challenge?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/engineering/structural/floating-bridge-quiz2.htm>