for _ in range(int(input())):
length = int(input())
strvalue = input()
l=list(strvalue)
vowel = [‘a’, ‘e’, ‘i’, ‘o’, ‘u’]
n=0
for char in l:
n+=1
if char in vowel:
reversestr = strvalue[0:(n-1)]
strvalue = reversestr[::-1] + strvalue[n-1::]
print(strvalue)