Detect last by one vowels in an array

Hi Guys!

I need help in building a VI which detects the last by one vowel in a word and then it executes specific actions depending on the vowel.

I have an array like this:

Peti    Teri
Zoli    Hajni
Tomi    Heni
Pali    Robi

(These are Hungarian words, it is not important)

So the VI should observ the last by one vowel in every word, and if it is "a,o,u" it executes an action; if it is "e,i" it executes another action.

I would appreciate your help. Thank you in advance!