Papa ga iku toki wa
papa ga iku toki wa ?
p a p a WORD_BOUNDARY g a WORD_BOUNDARY i k ɯ WORD_BOUNDARY t o k i WORD_BOUNDARY w a WORD_BOUNDARY
p a p a WORD_BOUNDARY g a WORD_BOUNDARY i k u WORD_BOUNDARY t o k i WORD_BOUNDARY w a WORD_BOUNDARY