How to make a "neural network" of a bot in VK on a python?

Question

Python

Hello everyone who reads, I'll get straight to the point. There is a bot that remembers the words and phrases of people in a group chat, then what he remembers is written to his database and then from this database he says two or three random words that he remembered from people, it doesn’t matter if they have a connection with each other, contact You don't need a bot, it answers everyone and always.
Who can tell how to make such a bot?

Answer 1

What to do here?
Through the long poll you receive messages, get all the words from them, write the words to the database or textbook and at each event from the long poll pull random 2-3 words and send

Answer 2

Look on the git hub for repositories with learn python bot telegram, there are paid learn python courses, we made such a bot there, or just go to vk api and use mongoDB (it's simple)