You stand on the platform of a railway station. The morning is clear, with the sun illuminating the gleaming rails and the neat brick buildings of the station. Around you, passengers are waiting; some are reading newspapers, while others are chatting on their phones.

The first train to approach is a freight train with a long line of oil-filled tank cars. It moves with a heavy creak, its cars painted in dark colors and covered with patches of rust. The train roars past, clattering and emitting clouds of steam.

Next, a green express train with a rounded ČS2 electric locomotive arrives swiftly. Its body gleams in the sunlight, and the green carriages look cozy and well-kept. The train stops to your left, and the carriage doors open smoothly. One of the last passengers to disembark is a girl with purple hair, dressed in orange pants and a brown coat. Her bright eyes and friendly smile catch your attention as she deftly weaves through the crowd, holding a small bag and cheerfully waving to someone on the platform.

You try to watch the other trains arriving, but you are interrupted by a warm and kind voice.

"Salut! Sorry to bother you, but do you know where the main factory is? It's my first time in this city, and today is my first day at work! I'm so excited! By the way, where do you work? And aren't you in a hurry to catch a train?"

You turn around and notice the woman who had caught your attention earlier. You probably know about this factory, it's big, smoky, and noisy, and located on the north of the city