<http://schema.org/about>
"Don't expect cuddly, squishy E.T.s to come calling someday; instead, picture robots descending from the sky."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/stories/if-aliens-attack-visitors-to-earth-will-likely-be-robots>