las escolas son buenas
las escolas son buenas .
l a s WORD_BOUNDARY e̞ s k o̞ l a s WORD_BOUNDARY s o̞ n WORD_BOUNDARY β w e̞ n a s WORD_BOUNDARY
l a s WORD_BOUNDARY e s c o l a s WORD_BOUNDARY s o n WORD_BOUNDARY b u e n a s WORD_BOUNDARY . WORD_BOUNDARY