[{'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: 13.5. No Waiver The failure of Com2uS to require or enforce strict performance by you of any provision of the Com2uS Policy or failure to exercise any right hereunder will not be considered a waiver or relinquishment of Com2uS's right to assert or rely upon any such provision or right in that or any other instance. An express waiver made by Com2uS in one occasion is effective only in that instance and only for the purpose that it is given and is not to be construed as a waiver on any future occasion or against any other person."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]