<http://schema.org/about>
"Dolphins \"talk\" to each other, using the same process to make their high-pitched sounds as humans, according to a new analysis of results from a 1970s experimen"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/stories/dolphins-talk-like-humans-scientists-say>