<http://schema.org/description>
"Demon is a solitaire card game played by two to eight people, all at once, with everybody building on common piles. This game can get loud so you may need a whistle! Learn how to play the raucous game of Demon."^^<http://www.w3.org/2001/XMLSchema#string>
<http://entertainment.howstuffworks.com/how-to-play-demon.htm>