Ok kiddo, so imagine you're playing a game of make believe with your friends. You decide that you're all going to pretend to be characters in a story that takes place in a city called Oslo. It's a play, which means you'll get to act out different scenes and say lines just like actors do in a movie, but it's live and in front of an audience.
Now, imagine that the play is written by a person who is very good at writing stories and knows a lot about Oslo. They write a really interesting and exciting story that takes you on a journey through the city. You learn about the different neighborhoods, the people who live there, and the things that they do.
When the day of the play arrives, you and your friends put on costumes and get ready to perform. You practice your lines and your movements so that you can make the story come alive. Then, you go out onto a stage in front of an audience and perform the play for them.
As you act out the scenes, the audience gets to watch and feel like they're really in Oslo with you. They get to see the city the way that you and your friends imagined it, and they get to experience the story that the writer came up with.
When the play is over, you and your friends take your bows and the audience claps and cheers. You all feel proud and happy because you did a great job of bringing the story of Oslo to life.