character: Dr. John Smith
topic: Cardiovascular Exercise Benefits
grade: 9
subject: Science
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character: Coach Lisa
topic: Importance of Aerobic Exercise for Teenagers
grade: 9
subject: Science
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character: Mr. Thompson
topic: How Exercise Affects Heart Health
grade: 9
subject: Science
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character: Dr. Sarah Lee
topic: The Role of Physical Activity in Adolescents
grade: 9
subject: Science
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