bueno es que es dificil
bueno es que es dificil .
β w e̞ n o̞ WORD_BOUNDARY e̞ s WORD_BOUNDARY k e̞ WORD_BOUNDARY e̞ s WORD_BOUNDARY d i f i s i l WORD_BOUNDARY
b u e n o WORD_BOUNDARY e s WORD_BOUNDARY q u e WORD_BOUNDARY e s WORD_BOUNDARY d i f i c i l WORD_BOUNDARY . WORD_BOUNDARY