sentences:  Unlike the Chūō Line variant, these sets have gangways at both ends.Due to the reduction of the Chiba area limited express services, several trains are being used for the Chuo and Fujikyuko Line "Fuji Excursion" services and other charter and extra services.In addition to these, 4 sets are planned for conversion into E257-2500 to be used on Tōkaidō Main Line "Odoriko" limited express services.