es la mamá de quién
es la mamá de quién ?
e̞ s WORD_BOUNDARY l a WORD_BOUNDARY m a m a WORD_BOUNDARY d e̞ WORD_BOUNDARY k j e̞ n WORD_BOUNDARY
e s WORD_BOUNDARY l a WORD_BOUNDARY m a m á WORD_BOUNDARY d e WORD_BOUNDARY q u i é n WORD_BOUNDARY ? WORD_BOUNDARY