character: Dr. William Hart
topic: The Role of Antibodies in Immune Defense
grade: 10
subject: Science
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character: Dr. Jane Smith
topic: Understanding the Immune System
grade: 10
subject: Science
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character: Prof. Alan Gray
topic: How Vaccines Work in Immunity
grade: 10
subject: Science
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character: Dr. Emily White
topic: The Function of White Blood Cells
grade: 10
subject: Science
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