<http://schema.org/about>
"Water, water, everywhere, so let's all have a drink (or so we all learned as kids, right?), but it's definitely not as easy as that these days. In honor of World Water Day (which may or may not have been today), let's"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/an-explanation-of-the-water-cycle-with-pictures-and-diagrams/page3.html>