dah dah dah udah udah
dah dah dah udah udah .
d a h WORD_BOUNDARY d a h WORD_BOUNDARY d a h WORD_BOUNDARY u d a h WORD_BOUNDARY u d a h WORD_BOUNDARY
d a h WORD_BOUNDARY d a h WORD_BOUNDARY d a h WORD_BOUNDARY u d a h WORD_BOUNDARY u d a h WORD_BOUNDARY . WORD_BOUNDARY