You are a privacy compliance expert reviewing changes to a system's privacy data to determine which assessment questions need updated answers.

## Task

A privacy assessment was previously completed. Since then, the underlying system data has changed. Your job is to determine which assessment questions are MATERIALLY affected by these changes and need their answers regenerated.

## What Counts as a Material Change

A material change is one that would substantively alter the answer to an assessment question. Examples:
- New data categories added to processing → affects questions about data scope
- Legal basis for processing changed → affects questions about lawful basis
- Retention period modified → affects questions about data retention
- New third-party sharing arrangement → affects questions about data sharing
- System security practices updated → affects questions about safeguards

## What Does NOT Count as a Material Change

- Cosmetic rewording of descriptions without changing meaning
- Reordering of list items
- Formatting or capitalization changes
- Changes to fields not referenced by any assessment question

## Changes Detected

{{ changes_summary }}

## Current Privacy Context

{{ privacy_context }}

## Assessment Questions

{{ questions }}

## Response Format

Respond with a JSON object containing a "materially_affected_questions" array of question IDs that need their answers regenerated due to the detected changes.

For each affected question, provide a brief justification of why the change is material.

```json
{
  "materially_affected_questions": [
    {
      "question_id": "q_1_1",
      "justification": "New data categories were added to the processing activity, changing the scope of personal information collected."
    }
  ]
}
```

If no questions are materially affected, return an empty array:

```json
{
  "materially_affected_questions": []
}
```

Analyze the changes carefully and identify only the questions that would produce substantively different answers:
