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Trenitalia (DPR Veneto) EMU-5 ETR.521-158 in the latest Green REGIONALE color scheme is running on track 2 at San Giorgio di Piano BO station while operating a Regio express Venice to bologna service that normally is operated by EMU-6 Class ETR.621. 28/10/2025. Photo by Guido Allieri (guido@allieri.com) - www.allieri.com