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Main sound category:	Diphthongs
Source vowel:	SoundCategory object (189)
Target vowel:	SoundCategory object (167)
IPA symbol:	oi
IPA description:	close mid back rounded to close front unrounded diphthong
UPSID symbol:	calst_oi
UPSID description:	calst_oi
Occurs in	6 languages
That is in	1.22% of all languages
Occurs in:	Bengali_Bangladesh Catalan (Central) Estonian Indonesian Italian Italian_UPSID