[{'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: Advertising We use cookies to: deliver advertising on WeChat,with the aim of delivering more relevant advertising to all of our users-for example,you may receive advertisements based on your general location derived from your IP address or from your previous WeChat searches;and to help us and advertisers collect statistics regarding the delivered advertisements,such as how many users have viewed,clicked on and/or made purchases through such advertisements."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Cookie_or_similar_Tech_1stParty, Identifier_IP_Address_1stParty, Location_1stParty, Location_Cell_Tower_1stParty, Location_IP_Address_1stParty.'}]