"This is an example of this program."
I wrote a lot of text editors when I was younger, as I could not find the perfect one and tried making one myself, finding out in the process how difficult it was (still searching btw).
Then I type chapter 15 from the Hitch-Hiker's Guide to the Galaxy - "Far back in the mists of ancient time, in the great and glorious days of the former Galactic Empire, life was wild, rich and largely tax free." (and all the rest of it).