<http://schema.org/about>
"Could a simple \"tea bag\" of carbon and antimacrobial fibers that costs just pennies be the solution for quickly filtered drinking water on the go? Scientists from Stellenbosch University in South Africa hope they've found the solution to drinking water"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-water/super-cheap-nanotech-tea-bag-cleans-water-instantly-video.html>