[{'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: Our Apps do not collect the unique identification number assigned to your device by your operating system (sometimes called a UDID), or your contact list or address book, and do not collect any information on the contacts stored in your mobile device. This information will only be collected if it is necessary for the functioning of an App and will be disclosed to you prior to downloading the App."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_Address_Book_1stParty, Identifier_Device_ID_1stParty.'}]