character: Mrs. Sarah Williams
topic: The Role of Antibodies in Immunity
grade: 9
subject: Science
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character: Mr. John Smith
topic: Understanding the Immune System
grade: 9
subject: Science
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character: Dr. Emily Johnson
topic: Vaccines and Antibodies: How They Work
grade: 9
subject: Science
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character: Ms. Rachel Green
topic: B Cells and Antibody Production
grade: 9
subject: Science
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