<http://schema.org/about>
"Implementing cage-free standards for the chickens that deliver 8 billion eggs to McDonald's each year has to be seen as a step in the right direction."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/mcdonalds-will-make-8-million-chickens-happy.html>