<http://schema.org/alternativeHeadline>
"Supervolcano located in Yellowstone National Park probably won't wipe out humanity any time soon, according to scientists."^^<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>