<http://schema.org/about>
"  There was an old song, \"they've got to be taught, before it's too late\", about teaching children to \" hate all the people your relatives hate\"...but we aren't advocating that aspect.  Instead, teach them the principles of a wind generator and how solar"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/solar-technology/teach-them-young-solar-toys.html>