Answer the following question: Tobu 50000 series - The Tobu 50000 series (50000 Tobu 50000-kei) is a commuter electric multiple unit (EMU) train type operated by the private railway operator Tobu Railway in Japan manufactured by Hitachi to its A-train concept. The trains represent the first use of aluminium body cars on Tobu commuter trains. They are also the first Tobu trains to feature bilingual (Japanese and English) automated passenger announcements. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
Answer:
Mean Of Transportation