<http://schema.org/about>
"Cleaning products are everywhere in our homes, and get everywhere when we use them; on our dishes, countertops, floors, hands...the list goes on and on. They're so pervasive that we follow this general rule: if you don't want it on your skin or in your"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/culture/getting-ready-for-earth-day-green-cleaning.html>