<http://schema.org/about>
"A new Canadian study looks at the risks of engineered nanomaterials, and raises serious concerns. According to Martin Mittelstaedt in the Globe and Mail, the Council of Canadian"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/no-no-nano-micro-materials-could-pose-health-risks.html>