<http://schema.org/about>
"One chair, two chairs, three chairs more. That might be what French designer Paul Menand was thinking as he designed the Triplette Chair, three chairs built into one. We've seen a lot of interesting stackable chairs, but"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/sustainable-product-design/get-out-of-my-seats-a-remarkable-design-turns-one-chair-into-three-video.html>