<http://schema.org/alternativeHeadline>
"California's \"Not in my Can!\" can-paign features our favorite grouchy, green puppet warning about the hazards of mercury."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/gadgets-electronics/blogs/cfl-sales-soar-300-but-oscar-the-grouch-has-a-warning>