<http://schema.org/description>
"If you're excited about things like Siri and Google Now, which aim to turn smartphones into personal assistants on a number of levels, then you should definitely be watching the likes ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/video/2013/06/07/watch-the-ceo-of-sherpa-show-off-his-cool-personal-assistant-app-for-android-video/>