Look at this diagram.

There is an additional box in this flow diagram. Shade it in.

What type of boxe is it?

                        

Run the program.

Load the program Flowol2, and load the file lighthouse2.flo.
Is there any difference in the way the lighthous behaves, compared with the program lighthouse1.flo?

    

Now click on the picture of the sun.

What happens to the sun?

                        

What happens to the program?
Control - Lighthouse 2