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- Add a new Game (new entities: Game 1x. Modified entities: none)
- Add a new Game with one Title (new entities: Game 1x, GameTitle 1x)
- Add a new Game with more than one Title (new entities: Game 1x, GameTitle 2x)
- Modify a Game (changed fields: field a1, new fields: none)
- Modify a Game (changed fields: field a1, new fields: field a2)
- please add more!Modify a Game (new entities: GameTitle 1x, removed entities: GameTitle 1x)