y es buena o no
y es buena o no ?
i WORD_BOUNDARY e̞ s WORD_BOUNDARY β w e̞ n a WORD_BOUNDARY o̞ WORD_BOUNDARY n o̞ WORD_BOUNDARY
y WORD_BOUNDARY e s WORD_BOUNDARY b u e n a WORD_BOUNDARY o WORD_BOUNDARY n o WORD_BOUNDARY ? WORD_BOUNDARY