[{'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: You shall not engage in advertising to, or solicitation of, other users of the App to buy or sell any products or services, including, but not limited to, products or services related to that being displayed on the App or related to us. You may not transmit any chain letters or unsolicited commercial or junk email to other Users via the App. It shall be a violation of these Terms of Use to use any information obtained from the App in order to harass, abuse, or harm another person, or in order to contact, advertise to, solicit, or sell to another person other than Us without Our prior explicit consent. In order to protect Our Users from such advertising or solicitation, we reserve the right to restrict the messages or emails which a user may send to other Users in any 24-hour period to a number which we deem appropriate in our sole discretion. You understand that we have the right at all times to disclose any information (including the identity of the persons providing information or materials on the App) as necessary to satisfy any law, regulation or valid governmental request. This may include, without limitation, disclosure of the information in connection with investigation of alleged illegal activity or solicitation of illegal activity or in response to a lawful court order or subpoena. In addition, We can (and You hereby expressly authorize Us to) disclose any information about You to law enforcement or other government officials, as we, in Our sole discretion, believe necessary or appropriate in connection with the investigation and/or resolution of possible crimes, especially those that may involve personal injury."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]