[{'role': 'user', 'content': "Analyze the following clause from a privacy policy and determine if it's fair or unfair. Also identify any privacy practices mentioned: 3. LOCATION DATA To the extent ZEN makes location enabled ZEN Services available and you use such ZEN Services, ZEN may collect and process your location data to provide location related ZEN Services and advertisements. For example, some add-ons or offers may be available at dedicated locations. The location data is processed and stored only for the duration that is required for the provision of the location related ZEN Services."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Location_1stParty.'}]