<http://schema.org/description>
"The world's geekiest search engine (that's a 'Computational Knowledge Engine' to you), Wolfram Alpha has launched a new feature that allows you to manipulate data interactively.\r\n\r\nUsing ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2011/08/12/wolfram-alpha-adds-powerful-interactive-search-results/>