[{'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: Avast Call Blocker has no access to any of the incoming phone calls, phone numbers or contact lists on your iOS device. Blocking of SPAM calls is managed by iOS operating system itself by comparing incoming phone calls' numbers with the SPAM database created by Avast's algorithm."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_Address_Book_1stParty, Contact_Phone_Number_1stParty.'}]