In the case of palatal vowel harmony, the vowels of a word are either front vowels /æ y ø/ or back vowels /ɑ u o/.

(1) Finnish

väsymys /ˈvæ.sy.mys/ 'tiredness'

(2) Finnish

vastustaa /ˈvɑstustɑː/ 'to resist'

Coding

The value is '1' if there is palatal vowel harmony in a language.