[{'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: 2. To provide the service, identify and communicate with you, response to your requests/enquiries, and improve our service, we may send you emails. You may always opt out of receiving any, or all, of these communications by following the instructions;"}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]