kawa ga doo natta no
kawa ga doo natta no ?
k a w a WORD_BOUNDARY g a WORD_BOUNDARY d oː WORD_BOUNDARY n a t t a WORD_BOUNDARY n o WORD_BOUNDARY
k a w a WORD_BOUNDARY g a WORD_BOUNDARY d o o WORD_BOUNDARY n a t t a WORD_BOUNDARY n o WORD_BOUNDARY