For Question 5, the passage says “childhood prevention may be beneficial” but no comparison of effectiveness with adult treatment. No clear evidence → Not Given.

| Feature | Found in free keys? | |---------|---------------------| | Correct answers verified from official book | ❌ Rarely | | Location of answer (paragraph & line) | ✅ Sometimes | | Synonym/phrase matching | ❌ Usually no | | Explanation for True/False/Not Given | ✅ Occasionally | | Vocabulary list from passage | ❌ No |

Example:

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