data D1 where
  MkD1 :: (forall (p :: k -> *) (a :: k). p a -> Int) -> D1
  	-- Defined at <interactive>:3:1
data D2 where
  MkD2 :: (forall (p :: k -> *) (a :: k). p a -> Int) -> D2
  	-- Defined at <interactive>:4:1