Bob is blue. Bob is furry. Bob is quiet. Bob is red. Bob is rough. Bob is white. Charlie is furry. Charlie is quiet. Charlie is red. Charlie is rough. Harry is blue. Harry is furry. Harry is quiet. Harry is red. Harry is rough. Harry is white. Blue things are rough. Rough things are smart. If something is rough and furry then it is red. All white things are blue. If something is red and furry then it is blue. Rough, blue things are white. If something is quiet and blue then it is rough. If something is white and rough then it is furry.
Bob is not blue.