[{'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: When a user reports a phone number as being "spam", we store that phone number in combination with the user\'s internal ID in order to maintain the user\'s spam list online and also for the purpose of building a community-based spam-blocking directory.'}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Contact_Phone_Number_3rdParty.'}]