<http://schema.org/about>
"From its Organic Products Awards to debating whether air freighted produce can be organic, the UK's Soil Association has long been both an advocate for, and a pioneer of, organic foods. Now their Organic Farm School"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/green-food/learning-organic-farming-looking-back-or-moving-forward.html>