Taro akai buubu iru
taro akai buubu iru ?
t a r o WORD_BOUNDARY a k a i WORD_BOUNDARY b ɯː b ɯ WORD_BOUNDARY i r ɯ WORD_BOUNDARY
t a r o WORD_BOUNDARY a k a i WORD_BOUNDARY b u u b u WORD_BOUNDARY i r u WORD_BOUNDARY