<http://schema.org/about>
"The notion that the world will end with the coming of the new year, as some claim the ancient Maya predicted, has spawned a series of proposed methods for this"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/super-volcano-not-likely-to-destroy-earth-in-2012>