Bob is green. Bob is quiet. Bob is red. Bob is young. Harry is green. Harry is quiet. Harry is red. Harry is round. Harry is not white. Harry is young. All round, young people are green. If someone is quiet and not white then they are green. All green people are round. All cold people are red. If Harry is cold and Harry is round then Harry is quiet. If someone is red and not quiet then they are cold. If someone is white and not round then they are green. If someone is not green then they are not young.
Bob is not red.