Instructions: Given a part of privacy policy text, identify the type of personal information which is collected, used, tracked or retained. The type of information should be present inside the given policy text, answer as 'Not Specified' otherwise
Input: When a change of an unspecified nature is made to the privacy policy, the policy date is updated or information about the change is posted as part of the policy. Users can participate in a process to influence the change.
Output:
Not specified