|What is this white animal? …Is it a dog? And this black one may be a pig?
|Is this white bird a parakeet? The black one would be a chicken.
|…Oh I see. This probably means that you cannot eat the white ones. It should be good to eat a chicken but bad to eat a parakeet.*
|N.B These epitomes of good and evil may differ from yours. In this case, please regard them as mere examples, and so forth.