<http://schema.org/about>
"As John Laumer noted earlier, there is a lot of useful stuff in pee, but we dilute it with gallons of water, send it down big pipes mixed with everything else, and suddenly we have monstrous networks of waste piping, sewage treatment plants and water"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/bathroom-design/hot-poop-on-composting-toilets-separett.html>