eni eni eni eni
eni eni eni eni .
ɛ n i WORD_BOUNDARY ɛ n i WORD_BOUNDARY ɛ n i WORD_BOUNDARY ɛ n i WORD_BOUNDARY
e n i WORD_BOUNDARY e n i WORD_BOUNDARY e n i WORD_BOUNDARY e n i WORD_BOUNDARY . WORD_BOUNDARY