<http://schema.org/about>
"When shocking videos of dairy calves being bludgeoned in the head emerged, the response was universal disgust. In fact, it caused such a reaction that YouTube and Vimeo censors later removed the Mercy For Animals video. Whether"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/green-food/a-look-inside-a-humane-slaughter-house-video.html>