he he he he he
he he he he he .
h ɛ WORD_BOUNDARY h ɛ WORD_BOUNDARY h ɛ WORD_BOUNDARY h ɛ WORD_BOUNDARY h ɛ WORD_BOUNDARY
h e WORD_BOUNDARY h e WORD_BOUNDARY h e WORD_BOUNDARY h e WORD_BOUNDARY h e WORD_BOUNDARY