Charlie is blue. Charlie is furry. Charlie is green. Charlie is nice. Charlie is round. Dave is cold. Dave is rough. Dave is round. Harry is blue. Harry is cold. Harry is furry. Harry is green. Harry is nice. Harry is rough. Harry is round. All nice, cold things are rough. Round, nice things are green. Furry things are nice. If Dave is round then Dave is rough. Blue, round things are cold. Blue, green things are furry. If something is green then it is nice. If something is cold and green then it is round.
Dave is not nice.