character: Ms. Johnson
topic: The Importance of Cardiovascular Fitness
grade: 11
subject: Science
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character: Mr. Smith
topic: Benefits of Aerobic Exercise
grade: 11
subject: Science
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character: Ms. Lee
topic: Cardiovascular System and Health
grade: 11
subject: Science
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character: Dr. Patel
topic: How to Improve Heart Health
grade: 11
subject: Science
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