Objects in image: Train, Billboard, Poster
Text visible in image: VKL402, THE, END, OF, THE, TRAIN, FORMATION, ONLY, DRIVE, AGAINST, MACHINE, WITHCAU, TION, BRAKING, WEIGHT:, Br.v., G, 27t, P, 31t, 39.2t, 20t, 613.47m), 8.00, m+
Question: what is the serial number near the top?
Answers: vkl402, vkl402, vkl402, vkl402, vkl402, vkl402, vkl402, vkl402, vkl402, vkl402