Unearthed treasure Part 1

So over my holiday break, I spent some time tidying and organizing and going through some boxes that my parents had purged from their house and sent over to mine (yes, I haven't lived there for the better part of 2 decades, yet somehow all my stuff is still not out of their house. That's what comes from having parents living in the same house for almost 40 years. If they don't have to pack up and move, they don't often come across your boxes of old, unneeded stuff lurking in the attic or wherever).

There is not really any way to dispute the fact that I am a pack rat. I hold onto a lot of useless junk longer than I should. Now, don't get me wrong, it's not like I'm one of those scary hoarders whose houses are filled to the brim with old newspapers and magazines and half-full shampoo bottles and stuff. And then they drop dead one day, and people come over to clean up the house and it's all so shocking that the local news crews and like, 20/20 and Dateline and Oprah get called in to do a story on it. I just tend to look and stuff and think "I might need that someday" or "Hey, I have no use for that, but it's kind of cool" So, I put it in a box, and there it remains until some point in the future, when I get around to cleaning up again and re-discover the box, where the process is repeated or said item actually gets chucked.

Anyway, during my rummaging this time, I came across some absolute gems that needed to be shared. I was torn on which to post first, but I decided on this one:

(Click on image to enlarge)

So, what we have here appears to be Venn diagram from my high school Algebra course, in which we explore and chart common themes and topics in country songs. The relevant formulas seem to contemplate if the subject of the song is a either A). a trucker, B). in love, or C). in prison, along with the various permutations and combinations of those 3 states of being.

That is some good math, right there. It's weird I didn't do better in the class.