hai bubu bubu bubu
hai bubu bubu bubu .
h a i WORD_BOUNDARY b ɯ b ɯ WORD_BOUNDARY b ɯ b ɯ WORD_BOUNDARY b ɯ b ɯ WORD_BOUNDARY
h a i WORD_BOUNDARY b u b u WORD_BOUNDARY b u b u WORD_BOUNDARY b u b u WORD_BOUNDARY