Which company first introduced the concept of 'capsule hotels' specifically designed for bullet train passengers who missed their last connection of the day?

High-speed rail has transformed transportation across the globe, with various countries competing to develop the fastest and most efficient bullet train systems. These technological marvels have revolutionized how people travel between major cities, reducing travel times dramatically while offering comfortable and sustainable alternatives to air travel. Test your knowledge about one of the most significant product innovations in modern transportation history!

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Japan Railways Group (JR)
SNCF (French National Railway Company)
Deutsche Bahn (German Railways)
China Railway High-speed (CRH)