From: On the relation between the similarity of the acoustic distribution patterns of vowels and the language closeness
distances
a
i
u
Sum
Mongolian — Ewenki
0.016
0.013
0.061
0.090
Mongolian — Uyghur
0.039
0.049
0.064
0.152
Uyghur — Ewenki
0.051
0.021
0.133