<http://schema.org/about>
"Researchers at Cornell University have found a seemingly simple solution to creating more efficient solar cells. It turns out that particular molecules found in blue jeans and some ink dyes can be used in a process"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/blue-jeans-hold-secret-to-making-better-solar-cells.html>