[{'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: B. Co-Branded Services and Features. We may offer co-branded services and features, such as events or Promotions provided by us and/or our affiliated companies or other third party partners. We may share your PII with such co-branded partners and your voluntary use of or participation in a co-branded service or feature means that you opt-in and give your affirmative consent to collect any information provided in connection with the specific co-branded feature or service and to use such information for the fulfillment of the feature or service and for marketing or administrative purposes. The co-branded partner will be identified on the co-branded feature or service. If you wish to opt-out of a co-branded partner's future use of your Personally Identifiable Information for marketing purposes, you will need to contact the co-branded partner directly as the use of such information by a co-branded partner is subject to the co-branded partner's privacy policy."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]