You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
Given a part of privacy policy text, identify the purpose for which the user information is collected/used. The purpose should be given inside the policy text, answer as 'Not Specified' otherwise

The site collects your IP address or device IDs for advertising. Collection happens when you implicitly provide information on the website.
Solution: Advertising
Why? The given policy text states that it uses user information for 'advertising' explicitly

New input: A user's information of a type not covered by our label scheme is retained for a limited (but unspecified) period of time to fulfill a purpose not covered by our label scheme.
Solution:
Not Specified