<http://schema.org/about>
"City living can be tough on the brain \u2014 it's been linked to anxiety, depression and schizophrenia. By testing the brains of students raised or living in citie"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/health/healthy-spaces/stories/scientists-discover-that-living-in-cities-can-be-stressful>