character: Mr. John Smith
topic: Blood Flow and Circulation
grade: 11
subject: Biology
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character: Dr. Emily Johnson
topic: Human Circulatory System
grade: 11
subject: Biology
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character: Ms. Sarah Thompson
topic: Heart Anatomy and Function
grade: 11
subject: Biology
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character: Mr. David Lee
topic: Role of Blood Vessels in Circulation
grade: 11
subject: Biology
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