a_ver las letras
a ver las letras .
a WORD_BOUNDARY β e̞ ɾ WORD_BOUNDARY l a s WORD_BOUNDARY l e̞ t ɾ a s WORD_BOUNDARY
a WORD_BOUNDARY v e r WORD_BOUNDARY l a s WORD_BOUNDARY l e t r a s WORD_BOUNDARY . WORD_BOUNDARY