Vowel Quadrilateral
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i y ɨ ʉ ɯ u
ɪ ʏ ʊ
e ø ɘ ɵ ɤ o
ə
ɛ œ ɜ ɞ ʌ ɔ
æ ɐ
a ɶ ɑ ɒ

Where symbols appear in pairs, the one to the right represents a rounded vowel.