[{'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: In addition, if you choose to opt in to the 'find friends' feature Waze will collect: periodically, all of the phone numbers which are stored on your device's phonebook. We only collect numbersin a form which is anonymous to Waze, we will not collect names, addresses or other information from your device's phone book. This information will be used as part of the 'find friends' feature to help find and create a list of other Waze users who you may know and with whom you may wish to connect; and/ or"}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_Address_Book_1stParty, Contact_Phone_Number_1stParty, Contact_Postal_Address_1stParty.'}]