((p "A zettel with role " (@L (@H "“") "tag" (@H "”")) " is a zettel that describes specific tag." " " "The tag name must be the title of such a zettel.") (p "Such zettel are similar to this specific zettel: this zettel describes zettel with a role " (@L (@H "“") "tag" (@H "”")) "." " " "These zettel with the role " (@L (@H "“") "tag" (@H "”")) " describe specific tags." " " "These might form a hierarchy of meta-tags (and meta-roles)."))