<http://schema.org/about>
"Humpback whales living on different sides of the southern Indian Ocean bellow very different songs, suggesting the behemoths don't mingle much, or at least they"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/stories/humpback-whale-groups-sing-different-tunes>