<http://schema.org/about>
"The modern chocolate industry has a long history marred by slavery and deforestation. From the birth of the industry with the Spanish conquest of the Aztecs to the modern industry centered in West Africa the problems have remained"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/what-is-the-true-cost-of-chocolate.html>