nani shita toki ni naku no
nani shita toki ni naku no ?
n a n i WORD_BOUNDARY ʃ i t a WORD_BOUNDARY t o k i WORD_BOUNDARY n i WORD_BOUNDARY n a k ɯ WORD_BOUNDARY n o WORD_BOUNDARY
n a n i WORD_BOUNDARY s h i t a WORD_BOUNDARY t o k i WORD_BOUNDARY n i WORD_BOUNDARY n a k u WORD_BOUNDARY n o WORD_BOUNDARY