Context: As a common intermediate stage, it is possible to reconstruct depalatalized affricates: *c, *dz. (This coincides with the state of affairs in the neighboring Nuristani languages.) A further complication however concerns the consonant clusters *ćw and *dźw:

Question: What languages share a similar situation?
Answer: Nuristani languages

Question: What other elements of early Iranian languages problematize the east-west division?
Answer: *ćw and *dźw

Question: What is the linguistic categorization of *ćw and *dźw?
Answer: consonant clusters

Question: What is contrary to the state of affairs in the Nuristani languages?
Answer: Unanswerable

Question: What other elements of early Iranian language support the East-West division?
Answer: Unanswerable