<http://schema.org/about>
"The Royal Mail in the UK just released a set of stamps \"to pay tribute to Charles Darwin, the man who transformed the way many of us think about the natural world.\""^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/uk-post-office-issues-darwin-day-stamps.html>