he he he he ehe
he he he he ehe .
h ɛ WORD_BOUNDARY h ɛ WORD_BOUNDARY h ɛ WORD_BOUNDARY h ɛ WORD_BOUNDARY  ɛ h ə WORD_BOUNDARY
h e WORD_BOUNDARY h e WORD_BOUNDARY h e WORD_BOUNDARY h e WORD_BOUNDARY e h e WORD_BOUNDARY