Bob is big. Bob is furry. Bob is rough. Bob is smart. Dave is not big. Dave is rough. Dave is smart. Dave is not white. Dave is not young. Harry is big. Harry is blue. Harry is not furry. Harry is rough. Harry is smart. Harry is white. If Harry is furry and Harry is blue then Harry is big. Rough, white things are young. White things are blue. All furry things are not white. If something is blue then it is rough. If something is white and not furry then it is smart. If something is furry and not young then it is blue. If something is not rough then it is white.
Dave is furry.