<http://schema.org/about>
"Animals humanely raised in less-confined environments have greater access to soil, feed, rodents and wildlife which may be infected with T. gondii - but there's"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/food/healthy-eating/stories/organic-meat-may-have-higher-parasite-risk>