Dave is big. Dave is smart. Dave is young. Gary is big. Gary is nice. Gary is rough. Gary is young. If someone is big then they are nice. If Dave is smart then Dave is white. If Dave is white then Dave is quiet. If Dave is quiet and Dave is white then Dave is nice. If someone is young then they are nice. Smart, quiet people are nice. All rough people are big. Rough, nice people are young.
Gary is quiet.