<http://schema.org/description>
"Yahoo!\u00A0 has decided to stop allowing customers to access its services, including the Flickr photo-sharing platform, by using Facebook or Google log-in credentials. Instead the company will"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.aol.com/article/2014/03/08/yahoo-removes-facebook-and-google-log-in-for-users/20845741/>