ww eh ww eh he
ww eh ww eh he .
w e w e WORD_BOUNDARY  ə h WORD_BOUNDARY w e w e WORD_BOUNDARY  ə h WORD_BOUNDARY h ɛ WORD_BOUNDARY
w w WORD_BOUNDARY e h WORD_BOUNDARY w w WORD_BOUNDARY e h WORD_BOUNDARY h e WORD_BOUNDARY