Bob is furry. Bob is red. Bob is rough. Bob is smart. Bob is not white. Dave is not nice. Dave is white. If something is not rough and not round then it is not nice. If Bob is red and Bob is nice then Bob is furry. If Dave is rough and Dave is smart then Dave is nice. If something is rough and red then it is smart. Smart, red things are not nice. If Dave is not white then Dave is red. If Bob is nice and Bob is white then Bob is not furry. If something is not furry and not smart then it is not round.
Bob is round.