<http://schema.org/about>
"When I reported earlier this year that San Francisco was instituting a law making it mandatory to recycle and compost--lest citizens face a $500 fine--it was met with mixed reactions. Some were worried that such a law would infringe"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/mandatory-composting-law-already-a-success-in-san-francisco.html>