QQ : Chicken is very good. Sometimes they lay human being eggs.
PaPa : (??...) Why Human beings eggs and not chicken eggs??!
QQ : Because the eggs human can eat!
PaPa : Oh! How about other time?
QQ : Other time they lay chicken eggs, for little chicken to come out.
PaPa : Yes. So that when they grow up, they can lay more eggs for us.
QQ : No! So that we can eat the chickens.