[{'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: After reading this privacy statement you will have learned that: • We take security measures to safeguard this information; • We use this information to enhance your experience with UCWeb Services, to improve these Services, to make them better, more user-friendly and more relevant; • We will not share your personally identifiable information with third parties without your explicit consent; • We may use non-personally identifiable information to perform relevant services. • You always have the option to use UCWeb Services without sending any personally identifiable information to UCWeb, or to delete your information and opt out UCWeb."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]