[{'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: Contact Information: You may use your contact information, such as your email address or phone number, to customize your account or enable certain account features, for example, for login verification or Twitter via SMS. If you provide us with your phone number, you agree to receive text messages to that number from us. We may use your contact information to send you information about our Services, to market to you, to help prevent spam, fraud, or abuse, and to help others find your account, including through third-party services and client applications. You may use your settings for email and mobile notifications to control notifications you receive from Twitter. You may also unsubscribe from a notification by following the instructions contained within the notification or the instructions on our website. Your Discoverability privacy settings control whether others can find you on Twitter by your email address or phone number."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_1stParty, Contact_E_Mail_Address_1stParty, Contact_Phone_Number_1stParty.'}]