<http://schema.org/alternativeHeadline>
"Help a school win a $150,000 hybrid electric school bus and a visit from a LEED certified efficiency auditor in the America's Greenest School contest."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/energy/blogs/vote-for-americas-greenest-school>