Bob is red. Bob is rough. Bob is young. Dave is nice. Dave is red. Dave is young. Fiona is furry. Fiona is kind. Gary is not furry. Gary is nice. If someone is not kind then they are green. If someone is young and green then they are rough. If Bob is kind then Bob is furry. If Fiona is nice then Fiona is furry. If Fiona is not young then Fiona is green. If someone is not rough then they are nice.
Dave is young.