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## Example: An Educational Game (CRC Cards)

- A player has a name, a level, and a score.
- When the player gets a correct answer, the score must be incremented.
- After five score increments, the level is incremented - we will let the increment score function take care of that, but we must be able to find out what the level is.

  > Player
  > increment score |
  > get level |

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