<http://schema.org/description>
"You may think of the U.S., Liberia and Myanmar as the sad-sack metric losers. The truth, however, is a little more complicated -- sort of like remembering how to switch between pounds and kilograms."^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/why-us-not-on-metric-system.htm>