<http://schema.org/about>
"Your Treehugger homework for this week (previous homeworks can be found here and here) will seem obvious, but looking at public roads, it is self-evident that it is not that obvious to most people (once again, common sense is not so common). So your task"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/cars/treehugger-homework-drive-the-speed-limit.html>