Element#Purpose#Attribute usage l#Citable node for poetic texts#Required @n attribute for line ID p#Citable node for prose texts#Required @n attribute for unit ID div#Containing element in citation hierarchy (such as book of Iliad)#Required @n attribute for section ID list#Identifies a list structure (scholia only)# item#One item in a list (scholia only)# w# unclear# gap# add# num# rs##ethnic, waw, astro del# sic# corr# choice# orig# reg# abbr# expan# persName# placeName# q# ref# cit# title# ref#