<http://schema.org/description>
"Those green and brown stains in your toilet aren&amp;#039;t your fault. They got there through the minerals in your water. The question is, how do you make them disappear?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://home.howstuffworks.com/home-improvement/household-hints-tips/cleaning-organizing/how-to-clean-mineral-stains-from-your-toilet.htm>