Ulumandaʼ language
Ulumanda is an Austronesian language of West Sulawesi, Indonesia. It is nearly intelligible with other Pitu Ulunna Salu languages.

Phonology
The vowel inventory of Ulumanda is as follows:

The attested consonant inventory is as follows:

Vowel harmony
Ulumanda is unusual among the Austronesian languages of Sulawesi for featuring a vowel harmony opposition of front vowels /æ, ø, y/ to corresponding back vowels /ɑ, o, u/ comparable to that of the Uralic languages. Originally, fronted vowels arose from the fronting of back vowels before syllable-final velar consonants *k and *ŋ, but were phonemicized in final syllables when word-final *-m and *-n merged with *ŋ to result in -ŋ but did not front a preceding back vowel unlike original *-ŋ. These fronted vowels then fronted any other back vowels in a word except if a neutral vowel like *e or *i intervened between the vowels.

A contrastive pair includes /uraŋ/ "person" vs. /uræŋ/ [yræŋ] "shrimp".

References

Languages of Sulawesi
South Sulawesi languages