quien ha venido antes
quien ha venido antes ?
k j e̞ n WORD_BOUNDARY a WORD_BOUNDARY β e̞ n i d o̞ WORD_BOUNDARY a n t e̞ s WORD_BOUNDARY
q u i e n WORD_BOUNDARY h a WORD_BOUNDARY v e n i d o WORD_BOUNDARY a n t e s WORD_BOUNDARY ? WORD_BOUNDARY