está vacía del todo
está vacía del todo ?
e̞ s t a WORD_BOUNDARY β a s i a WORD_BOUNDARY d e̞ l WORD_BOUNDARY t o̞ d o̞ WORD_BOUNDARY
e s t á WORD_BOUNDARY v a c í a WORD_BOUNDARY d e l WORD_BOUNDARY t o d o WORD_BOUNDARY ? WORD_BOUNDARY