<http://schema.org/description>
"Four days ago we reported that Google was in the process of developing Google Offers, a service that looks to be Google's attempt at rivalling Groupon. It appears today that this service ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/google/2011/01/25/google-offers-goes-live-coupons-already-being-sent-via-email/>