<http://schema.org/about>
"Some have suggested that the drive to replace the dollar bill with a coin is driven by western mining interests, while the bill is being"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/make-room-for-the-dollar-coin-by-getting-rid-of-the-penny.html>