character: Dr. Sarah Lee
topic: The Role of White Blood Cells
grade: 10
subject: Biology
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character: Mr. Thomas Baker
topic: Immune System Functions
grade: 10
subject: Biology
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character: Ms. Emily Chen
topic: Types of White Blood Cells
grade: 10
subject: Biology
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character: Dr. John Smith
topic: How White Blood Cells React to Infection
grade: 10
subject: Biology
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