[{'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: Metro only collects Personal Information where it is reasonably necessary for one or more of its functions or activities and it is collected by lawful and fair means. Metro will not collect more information than is necessary or relevant. We will not collect sensitive information (as defined in the Privacy Laws), such as racial or ethnicity information, political opinions or associations, criminal records or health information unless we have obtained your prior consent."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]