character: Mr. Johnson
topic: Importance of Aerobic Exercise
grade: 9
subject: Science
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character: Ms. Smith
topic: Benefits of Physical Activity
grade: 9
subject: Science
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character: Dr. Lee
topic: Cardiovascular Health and Exercise
grade: 9
subject: Science
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character: Coach Parker
topic: Types of Aerobic Exercises
grade: 9
subject: Science
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