Anne is big. Anne is not furry. Anne is red. Dave is kind. Fiona is quiet. Harry is quiet. Harry is young. Big things are red. If something is not young then it is rough. If Dave is red and Dave is quiet then Dave is big. If Dave is big and Dave is quiet then Dave is furry. All rough things are quiet. If something is big then it is rough. Quiet things are red. If something is kind and not big then it is rough. If something is not big and not young then it is not kind.
Dave is not young.