Okay kiddo, so you know how every country has a leader, right? In Poland, the leader is called the President. Now, the President is a really important person who makes a lot of decisions that affect everyone in Poland.
But the President can't do everything alone. They need help from other people to make things happen. One of the people who helps the President is called the "Jack".
The Jack is like a right-hand person for the President. They help the President with a lot of different things like organizing events, making sure the President has everything they need, and even helping with important meetings.
Think of it like playing with your favorite toy. You might need some help carrying your toy to the playground or making sure it's clean before you play with it. The Jack helps the President like that, but with much bigger and more important things.
So, in short, the Jack is like the President's helper and works closely with them to make sure everything runs smoothly.