<http://schema.org/about>
"In New York's subways, you see a lot of discarded Metrocards. It's sad, not only because most people drop them on the floor rather than in a trash can, but because the cards are rechargeable, and there's no good"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/sustainable-product-design/take-a-seat-on-a-bench-made-from-5000-recycled-metrocards.html>