Bob is nice. Bob is smart. Charlie is smart. Gary is kind. Gary is nice. Gary is not quiet. Gary is not smart. Gary is young. Harry is blue. Harry is nice. All smart things are nice. Blue, nice things are smart. If something is not young then it is cold. Young things are not cold. Kind, blue things are cold. All cold things are not quiet. Quiet things are not smart. If something is quiet and cold then it is not young.
Bob is young.