esta no sabe nada
esta no sabe nada !
e̞ s t a WORD_BOUNDARY n o̞ WORD_BOUNDARY s a β e̞ WORD_BOUNDARY n a d a WORD_BOUNDARY
e s t a WORD_BOUNDARY n o WORD_BOUNDARY s a b e WORD_BOUNDARY n a d a WORD_BOUNDARY ! WORD_BOUNDARY