<http://schema.org/description>
"Traditionally, age demographics in each of South Dakota's 66 counties would resemble a pyramid: wide at the bottom for people in their younger years and narrow at the top for the older population."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2012-10-population-strain-counties-quality-life.html>