<http://schema.org/about>
"So do you know where the celebrities rate on being green? DeSmogBlog thinks they do and have created a little game. You match the picture of your favourite celeb to where you think they should be on the scale from black hat to white hat- your value"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/stars-and-stinkers-game.html>