dua dua he he he
dua dua he he he .
d u a WORD_BOUNDARY d u a WORD_BOUNDARY h ə WORD_BOUNDARY h ə WORD_BOUNDARY h ə WORD_BOUNDARY
d u a WORD_BOUNDARY d u a WORD_BOUNDARY h e WORD_BOUNDARY h e WORD_BOUNDARY h e WORD_BOUNDARY . WORD_BOUNDARY