Algal Plus Lisp - Question Number Nine

You've already guessed one Lisp closure. So the question is, how many other Lisp do you know? Algal plus Lisp is question number nine. If you get it correct, that'll be 5.5, which is basically 60%. All right. Last but not least, there's the F sharp logo. No one recognized it. It's a blue diamond. Really? It's not an F. But yeah, now it's like a deconstructed version of that somehow I'm sure.