What's wrong with this code???

Question

sentence = input().lower().split()

pig_latin = ''

for word in sentence:
new_word = word.replace(word[0], '')
new_word += word[0] + 'ay'

pig_latin += new_word + ' '

print(pig_latin)

This code does not work in some instances. I tried to identify the issue but I can't find one

Answer 1

Don't convert into lower case. Else fine I think..
Is there asked to do it?

Answer 2

for i in input().split(): print(i[1:] + i[0] + 'ay', end=' ')