[Haskell-cafe] how to make this work recursive ?

Hello, I found out that for 1 item I can do this : node = Node leaf "msg 1" leaf And for 2 items I can do this : node = Node leaf "msg1" (Node leaf "msg2" leaf) But now I wonder how I can make this work with recursion. It seems that I keep the first 2 items and change the 3th one from leaf to another node Roelof