Dave is blue. Dave is kind. Dave is quiet. Dave is round. Dave is smart. Fiona is kind. Fiona is rough. Fiona is round. Fiona is smart. Gary is kind. Gary is quiet. Harry is blue. Harry is kind. Harry is nice. Harry is rough. Harry is smart. All nice, round things are rough. Quiet, rough things are smart. If Fiona is round and Fiona is kind then Fiona is nice. Blue things are rough. If Harry is blue and Harry is quiet then Harry is kind. If something is quiet and smart then it is nice.
Gary is not smart.