character: Dr. Sarah Thompson
topic: Immune System Overview
grade: 9
subject: Science
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character: Professor John Smith
topic: Introduction to Human Biology
grade: 9
subject: Science
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character: Ms. Emily Carter
topic: The Role of White Blood Cells
grade: 9
subject: Science
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character: Dr. Alex Martinez
topic: Vaccines and the Immune Response
grade: 9
subject: Science
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