[{'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: Offer Wall: We may display an "offer wall" in our applications that is hosted by an offer wall provider. The offer wall allows third party advertisers to provide virtual currency to users in exchange for interacting with an advertisement or for completing a marketing offer that may include signing up for an account with one of those advertisers. These are not offers made by Storm8. These offers may be displayed to you based on certain technical information, such as your geographic area or anonymous demographic information. After clicking on one of these advertisements, you will no longer be on a site hosted by Storm8. To properly credit user accounts and to prevent fraud, a unique identifier, will be shared with the offer wall provider.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]