<http://schema.org/about>
"An asteroid the size of a passenger jet zoomed near the Earth on April 1, just in time for April Fools' Day, but the space rock flyby posed no threat of hitting"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/stories/april-fools-day-asteroid-zooms-past-earth>