un biberón es un bibi
un biberón es un bibi .
u m WORD_BOUNDARY b i β e ɾ o n WORD_BOUNDARY e s WORD_BOUNDARY u m WORD_BOUNDARY b i β i WORD_BOUNDARY
u n WORD_BOUNDARY b i b e r ó n WORD_BOUNDARY e s WORD_BOUNDARY u n WORD_BOUNDARY b i b i WORD_BOUNDARY