Bob is furry. Bob is green. Bob is nice. Bob is red. Bob is rough. Bob is white. Bob is young. Red, white things are green. Green things are white. If Bob is nice and Bob is furry then Bob is young. All young, nice things are furry. White, young things are nice. Green things are red. If something is young and furry then it is nice. If something is green then it is rough.
Bob is not green.