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Nagano is actively planning to hold eco-friendly Olympic Games that won't harm the natural environment. During the Games, Nagano will need to transport crowds of athletes, officials, spectators, and reporters to and from the events. A number of low-emission vehicles, which are attracting worldwide attention, will be used for this. Question: Low-emission vehicles use fuels other than gasoline, so they release less nitrogen oxide, carbon dioxide, and other exhaust gas that harms the environment. What kind of vehicles will be used in Nagano?
