Bob is kind. Bob is not quiet. Bob is young. Dave is blue. Dave is not green. Dave is not quiet. Dave is young. Fiona is big. Fiona is not green. Fiona is kind. Fiona is young. Harry is big. Harry is green. Harry is kind. Harry is quiet. All young people are kind. If someone is not quiet then they are young. If Bob is big then Bob is green. All big people are kind. All big people are smart. If Fiona is quiet and Fiona is not kind then Fiona is smart.
Harry is not young.