User:Justinrleung/Dungan phonology

Erhua rules (Lin, 2012)

 * If the 韻腹 or 韻尾 is, then just insert at the end.
 * If the coda is a nasal, the nasal is deleted. If the main vowel is open, then just insert at the end; if the main vowel is high/close, then insert  at the end.
 * For, insert at the end.
 * For, the vowel is replaced with.