List of Trulees

There's something weird about the naming scheme here.

1. Article about X₀ (Air Bud)
2. List of articles about X₁ (Dogs playing basketball)
3. Lists of articles about X₂ (Dogs playing sports)
4. List of lists of lists

Level 3 should have been "List of lists of articles". And if 4 had been fully specified as "List of lists of lists of articles about X₃", it wouldn't contain itself.