vamos a comprar bebida
vamos a comprar bebida .
b a m o s WORD_BOUNDARY a WORD_BOUNDARY k o m p ɾ a ɾ WORD_BOUNDARY β e β i ð a WORD_BOUNDARY
v a m o s WORD_BOUNDARY a WORD_BOUNDARY c o m p r a r WORD_BOUNDARY b e b i d a WORD_BOUNDARY