<http://schema.org/description>
"London, Sep 21 (ANI): Living in a crowded city may not seem to be the right way to stay healthy, but it did help our ancestors protect their descendants from disease."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.oneindia.com/2010/09/21/citydwelling-helped-us-develop-resistance-to-disease.html>