bakku bakku pipi pipi
bakku bakku pipi pipi .
b a k k ɯ WORD_BOUNDARY b a k k ɯ WORD_BOUNDARY p i p i WORD_BOUNDARY p i p i WORD_BOUNDARY
b a k k u WORD_BOUNDARY b a k k u WORD_BOUNDARY p i p i WORD_BOUNDARY p i p i WORD_BOUNDARY