Original sentence: In Greece eight (8) diesel DMU2 Desiro trains were temporarily in service with the Hellenic Railways Organisation (OSE) during 2004-2005, and again in 2007 on the Athens - Chalkida line and on the Athens suburban railway lines (Proastiakos), Piraeus - Kiato, Kiato - Athens International Airport.OSE also operates twenty (20) electric EMU5 Desiro trainsets equipped for the 25-kV overhead catenary system
Edited sentence: In Greece eight (8) diesel DMU2 Desiro trains (OSE class 660) were temporarily in service with the Hellenic Railways Organisation (OSE) during 2004-2005, and again in 2007 on the Athens - Chalkida line and on the Athens suburban railway lines (Proastiakos), Piraeus - Kiato, Kiato - Athens International Airport.OSE also operates twenty (20) electric EMU5 Desiro trainsets (OSE class 460) equipped for the 25-kV overhead catenary system