[{'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: We also use the information we collect to: • Send you updates (such as when certain activity, like repins or comments, happens on Pinterest), newsletters, marketing materials and other information that may be of interest to you. For example, depending on your email notification settings, we may send you weekly updates that include Pins you may like. You can decide to stop getting these updates by updating your account settings (or through other settings we may provide)."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]