[{'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: Beta Services. Despite anything to the contrary in this Agreement: (a) Customer may choose to use Beta Services in its sole discretion; (b) Beta Services may not be supported and may be changed at any time without notice; (c) Beta Services may not be as reliable or available as the Services; (d) Beta Services have not been subjected to the same security measures and auditing to which the Services have been subjected; and (e) DROPBOX WILL HAVE NO LIABILITY ARISING OUT OF OR IN CONNECTION WITH BETA SERVICES - USE AT YOUR OWN RISK. Limitation of Liability."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]