# Keep a direct link to mentities by full name to speed up `mentity_from_uri`
	var mentities_by_full_name: HashMap[String, MEntity] is lazy do
		var mentities_by_full_name = new HashMap[String, MEntity]
		for mentity in collect_mentities do
			mentities_by_full_name[mentity.full_name] = mentity
		end
		return mentities_by_full_name
	end