<http://schema.org/about>
"The Humane Society of the United States has just released video from undercover investigations at the nation's third and fifth largest pork producers, one of which is a Walmart supplier. The picture is graphic, ugly, and unfortunately usual."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/undercover-investigation-oklahoma-pig-farms-reveals-systemic-cruelty-factory-farming-video.html>