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Let us explain what you see in more detail:
@SUMMARY and @PICTURE are @SUMMARY and @PICTURE are attribute, they manipulate the behaviour of the knowledge based system comparable to all the Slots&Properties. Using the @SUMMARY attribute the @SUMMARY attribute you tell the system to display an overview of total selection made based on the dialog through de included data. @PICTURE tells that pictures should be displayed of which the references are given in the included dataset.
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