<http://schema.org/about>
"Short design-life products made of PVC have been a common, inexpensive, and functional choice for almost 50 years.  But, vinyl can also be a risky choice of material for objects often handled by consumers, posing a risk of lead exposure, especially if"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/sears-kmart-join-wal-mart-target-in-pvc-reduction-programs.html>