<http://schema.org/about>
"Streets are not just for moving, but also for living. Street furniture makes living more comfortable but can take up a lot of space. Artists Carmela Bogman and Rogier Martens solved this problem with Pop-up, street furniture"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/sustainable-product-design/street-furniture-pops-up-when-needed.html>