[{'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: Promotional Communications You may opt out of receiving promotional messages from Glu by following the instructions in those messages or by contacting us at privacy[at]glu.com. If you opt out, we may still send you transactional or relationship messages, such as those about your account or our ongoing business relations."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]