((p "A zettel with the role " (@L (@H "“") "role" (@H "”")) " describes a specific role." " " "The described role must be the title of such a zettel.") (p "This zettel is such a zettel, as it describes the meaning of the role " (@L (@H "“") "role" (@H "”")) "." " " "Therefore it has the title " (@L (@H "“") "role" (@H "”")) " too." " " "If you like, this zettel is a meta-role.") (p "You are free to create your own role-describing zettel." " " "For example, you want to document the intended meaning of the role." " " "You might also be interested to describe needed metadata so that some software is enabled to analyse or to process your zettel."))