In-notebook data dependencies: install dependencies in cells and be able to use them in the same session.
Украинцам запретили выступать на Паралимпиаде в форме с картой Украины22:58
，详情可参考新收录的资料
"I'm sure I've written a book where everything could have been solved if somebody had a mobile phone."
Simulated multiple things in progress with the all_progress array, and having the various slots in that array fill up randomly