Deletion of List of lists of lists (4th nomination)

Comment: per 
Stance: keep
Cited policy: Wikipedia:Categories, lists, and navigation templates (WP:CLN)

Comment: Qualifies per  relative to :Category:Lists of lists and as a functional navigational aid per 
Stance: keep
Cited policy: Wikipedia:Categories, lists, and navigation templates (WP:NOTDUP||WP:LISTPURP)