I think this guy was pranking similar stations a couple years back. Or at least, a similar type of trickery.
Believe it or not, one of my favorite things to do in high school and middle school was diagramming sentences.
This poster that you can buy for $29.99 gave me a bit of a grammar boner. The screen capture above shows some of my favorite books of all time, The Great Gatsby, The Grapes of Wrath and Lolita.
Go check out the poster here.