<http://schema.org/description>
"When humans discovered fire, they learned to cook their food in a controlled environment. What came next? Flamethrowers, of course. What do flamethrowers have in common with their living counterpart -- fire breathers?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/flamethrower4.htm>