Bob is cold. Charlie is cold. Charlie is nice. Charlie is smart. Erin is red. Erin is young. Harry is red. If someone is quiet and young then they are red. Quiet people are young. Smart people are round. If someone is nice and cold then they are young. If Erin is quiet and Erin is round then Erin is nice. All round, young people are smart. Nice, red people are cold. All red people are nice. All young, red people are round.
Harry is not young.