[{'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: Health-Related Ad Targeting. In the United States, we provide interest-based advertising based on a limited number of standard, non-sensitive health-related interest categories, including allergies, arthritis, cholesterol, cold and flu, diabetes, gastrointestinal health, headache / migraine, healthy eating, healthy heart, men's health, oral health, osteoporosis, skin health, sleep, and vision / eye care. We will also target ads based on custom, non-sensitive health-related interest categories as requested by advertisers."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]