Anne is cold. Anne is green. Anne is nice. Anne is quiet. Anne is rough. Dave is green. Dave is quiet. Dave is round. Fiona is nice. Harry is rough. All round things are cold. All rough things are quiet. Quiet things are green. All green things are round. Quiet, cold things are white. All nice things are white. If Harry is white then Harry is quiet. Quiet, round things are nice. If something is rough and not quiet then it is not white.
Harry is not round.