Dave is rough. Dave is white. Fiona is big. Fiona is rough. Fiona is young. Gary is nice. Gary is young. Harry is big. Harry is quiet. Harry is young. If Harry is white and Harry is nice then Harry is young. If Fiona is big and Fiona is rough then Fiona is nice. If something is nice then it is rough. White things are green. If something is rough and young then it is big. If Fiona is quiet and Fiona is young then Fiona is nice. Green, white things are quiet. If something is big and young then it is white. If Fiona is quiet and Fiona is nice then Fiona is rough.
Gary is not green.