| Vowels | Answer | % Correct |
|---|---|---|
| oyo | Tokyo | 100%
|
| io e aeio | Rio de Janeiro | 93%
|
| ai | Paris | 73%
|
| oo | Oslo | 60%
|
| e o | New York | 40%
|
| eii | Beijing | 33%
|
| e | Perth | 33%
|
| aeoa | Barcelona | 27%
|
| eoia | Pretoria | 27%
|
| aua | Auckland | 7%
|