ai qué bonito tren
ai qué bonito tren !
a i WORD_BOUNDARY k e̞ WORD_BOUNDARY β o̞ n i t o̞ WORD_BOUNDARY t ɾ e̞ n WORD_BOUNDARY
a i WORD_BOUNDARY q u é WORD_BOUNDARY b o n i t o WORD_BOUNDARY t r e n WORD_BOUNDARY ! WORD_BOUNDARY