Complex sentence: MV "Mein Schiff 1" is a "Century"-class cruise ship owned and operated by TUI Cruises, and previously cruised as MV "Galaxy" with Celebrity Cruises.
Split into simpler sentences: MV "Mein Schiff 1" is a "Century"-class cruise ship owned and operated by TUI Cruises. Previously, she cruised as MV "Galaxy" with Celebrity Cruises.