system
A chat on subreddit /r/me_irl
human
But see that's the thing. I bet originally it was meant to test proper grammar as in only one way to post the question would result in the exact answer in the board. However, ever since I was a kid the answers have always been "W + B + X = C" where W is a w interrogative word, B is a conjugation of to be and C is the counter to the statement in the board. Which as u/Plastic_Pinocchio said is the exact same as just answering the statement as if it was a question. So you always get, "What is X, Where is X, Who is X" adding absolutely NOTHING to the formula.
gpt
I think that all you need to do is post it as a question. It doesn't have to be grammatically correct? If you say something along the lines of what is Oprah or where is you'll get credit