[{'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: Address Book. You provide us the phone numbers of WhatsApp users and your other contacts in your mobile phone address book on a regular basis. You confirm you are authorized to provide us such numbers to allow us to provide our Services."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_Address_Book_1stParty, Contact_Phone_Number_1stParty.'}]