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