character: Ms. Sarah Lee
topic: Innate vs. Adaptive Immunity
grade: 9
subject: Biology
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character: Mr. John Smith
topic: Immune System Overview
grade: 9
subject: Biology
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character: Dr. Emily Johnson
topic: The Role of White Blood Cells
grade: 9
subject: Biology
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character: Professor Alan Carter
topic: Vaccines and Immunity
grade: 9
subject: Biology
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