ottottotto abunai abunai
ottottotto abunai abunai .
o t t o t t o t t o WORD_BOUNDARY a b ɯ n a i WORD_BOUNDARY a b ɯ n a i WORD_BOUNDARY
o t t o t t o t t o WORD_BOUNDARY a b u n a i WORD_BOUNDARY a b u n a i WORD_BOUNDARY