<http://schema.org/about>
"Part of the reason enforcing restrictions and bans on shark finning is so difficult is that it is nearly impossible to trace where shark fins landing in stores and restaurants came from. Without knowing the source, it's"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/scientists-track-origins-of-shark-fins-using-dna-zip-codes.html>