Bob is rough. Bob is smart. Dave is blue. Dave is cold. Dave is furry. Dave is red. Dave is rough. Dave is smart. Dave is white. Fiona is blue. Fiona is red. Fiona is smart. All furry things are white. All red things are white. If something is furry and rough then it is cold. If something is furry then it is smart. If something is white and rough then it is red. All white, cold things are blue. White, red things are furry. All white, blue things are rough.
Bob is blue.