<http://schema.org/description>
"Facebook appears to be testing a new feature on user streams and members' profiles, enabling the functionality to submit a comment simply by hitting enter, but also to edit a comment ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/facebook/2011/03/16/facebook-drops-the-comment-button-allows-users-to-edit-replies/>