10	The app shall allow the user to manually set an alarm.
20	The app shall allow users to specify a Google account whose calendar is scraped for potential alarms.
30	The app shall allow the user to select which calendar will be scraped.
40	The app shall allow the user to specify public calendars to be scraped.
50	The app shall allow the user to specify an alarm to be visual, aural or haptic.
60	The app shall allow the user to cancel an alarm.
70	The app shall allow the user to temporarily silence an alarm.
80	The app shall allow the user to silence all alarms.

Scenario 1:

The first time that the application is opened after installation it presents the user with an introduction screen that describes the major feature of the application. Then it asks them for the login credentials for their Google account. The application scans the calendar data for potential calendars and events on those calendars and presents the user a list of candidate events for which to generate alarms. Once the user selects candidates the application configures those alarms and to scan for future alarms that are similar.

Write a use case for silencing the alarm.