<http://schema.org/about>
"Garden centres in countries affected by draught, like Spain for example, are promoting Xeriscaping (or Xeroscaping) in order to motivate people to help save water. This technique of water conserving landscaping"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/lawn-garden/xeriscape-the-art-of-water-conserving-landscaping.html>