<http://schema.org/about>
"The city government of Washington DC, beginning this month, will impose a tax of 5 cents per plastic bags for supermarket customers. City officials plan to use the increased revenue to combat pollution in a local river. According"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/washington-dcs-plastic-bag-tax-takes-effect-this-week.html>