mata akai buubu atta no
mata akai buubu atta no ?
m a t a WORD_BOUNDARY a k a i WORD_BOUNDARY b ɯː b ɯ WORD_BOUNDARY a t t a WORD_BOUNDARY n o WORD_BOUNDARY
m a t a WORD_BOUNDARY a k a i WORD_BOUNDARY b u u b u WORD_BOUNDARY a t t a WORD_BOUNDARY n o WORD_BOUNDARY