Instruct: Classify the following sentence into a predefined topic category:
What factors should the controller take into account to ascertain whether processing for another purpose is compatible with the purpose for which the personal data are initially collected?
Assign it to one of the following topics:[Chapter 4: Controller and processor, Chapter 5: Transfers of personal data to third countries or international organisations, Chapter 11: Final provisions, Chapter 7: Cooperation and consistency, Chapter 6: Independent supervisory authorities, Chapter 3: Rights of the data subject, Chapter 8: Remedies, liability and penalties, Chapter 2: Principles, Chapter 9: Provisions relating to specific processing situations, Chapter 1: General provisions, Chapter 10: Delegated acts and implementing acts]
Output: