las matemáticas o qué
las matemáticas o qué ?
l a s WORD_BOUNDARY m a t e̞ m a t i k a s WORD_BOUNDARY o̞ WORD_BOUNDARY k e̞ WORD_BOUNDARY
l a s WORD_BOUNDARY m a t e m á t i c a s WORD_BOUNDARY o WORD_BOUNDARY q u é WORD_BOUNDARY ? WORD_BOUNDARY