But properly understanding what? You can diagram the question all you want, but if you don't know the answer it's pointless, no? Wikipedia is just a source of d

But properly understanding what? You can diagram the question all you want, but if you don't know the answer it's pointless, no? Wikipedia is just a source of data. Given that Jeopardy focuses a lot on literature, I'd also throw in gutenburg project books. And probably a newspaper archive going way back, like the NYT.