#!/usr/bin/python3
import sys, re
for line in sys.stdin:
if (re.search(r'(^[aeiouy][^aeiouy]*$|^[^aeiouy]+[aeiouy]$|^[^aeiouy]+[aeiouy][^aeiouy]+$)', line)):
print('true')
else:
print('false')
