Bob is blue. Bob is furry. Bob is round. Bob is young. Charlie is quiet. Charlie is round. Dave is kind. Dave is round. Gary is blue. Gary is cold. If Charlie is cold then Charlie is furry. All round, blue people are kind. All young, cold people are round. If someone is round and kind then they are young. All kind, blue people are cold. If someone is furry then they are cold. If Gary is quiet then Gary is young. Blue people are furry. All furry people are quiet.
Charlie is not young.