RNN tool online?

Hi I don't really know anything about this, but I've seen some stuff online where I guess people have fed a neural network a bunch of books, or a bunch of song lyrics, or movie scripts, and then have it spit out it's own book, move, song etc, always kind of bad/ funny, like decent but clear a person didn't write it.

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I'm wondering if there's some tool like this online where you can feed it some small text phrases and see what it comes up with, idk much coding but is this a simple task or very hard to do?

Thanks for any help!