Vowel harmony
Vowel harmony exists in the Mawo (麻窝) dialect. Typically, vowel harmony is used to match a preceding syllable's vowel with the succeeding vowel or its height. In some cases, however, the vowel of a succeeding syllable will harmonize in the opposite way, matching with the preceding vowel. This process occurs across syllables in compounds or in prefix + root combinations. Vowel harmony can also occur for r-coloring on the first syllable if the second syllable of a compound or prefix + root combination already has r-coloring.