a buscar uno un que
a buscar uno un que ?
a WORD_BOUNDARY β u s k a ɾ WORD_BOUNDARY u n o̞ WORD_BOUNDARY u n WORD_BOUNDARY k e̞ WORD_BOUNDARY
a WORD_BOUNDARY b u s c a r WORD_BOUNDARY u n o WORD_BOUNDARY u n WORD_BOUNDARY q u e WORD_BOUNDARY ? WORD_BOUNDARY