A misleading description in part 2, exercise 21 (Story)

[valtterikantanen]

In exercise 21 of the part 2 the task is written ambiguously. Currently, the task is:

Change the program so that the loop ends also if the user types in the same word twice.

The task should really be:

Change the program so that the loop ends also if the user types in the same word twice in a row.

The Finnish version of the material includes the missing condition. The English version should also be updated as the current task suggests that the most recent input should be compared with all previous inputs.