<http://schema.org/description>
"Following the release of a firmware update yesterday that enabled the Power Nap feature on MacBook Air mid-2011 models, Apple has shipped a similar update for Retina MacBook Pros, reports ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apple/2012/07/27/apple-firmware-update-gives-retina-macbook-pros-the-power-nap-support-theyve-been-missing/>