<http://schema.org/about>
"Getting some outdoor time is not only good for the soul, it's probably good for the mind. Research from The Sage Colleges in Troy, New York, suggests that exposure to a natural soil bacterium called Mycobacterium vaccae can increase learning behavior."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/outdoor-bacteria-can-make-you-smarter-and-happier.html>