<http://schema.org/url>
<http://www.treehugger.com/sustainable-product-design/recycled-materials-help-urbanize-shanty-town-installed-in-the-center-of-buenos-aires.html>
<http://www.treehugger.com/sustainable-product-design/recycled-materials-help-urbanize-shanty-town-installed-in-the-center-of-buenos-aires.html>