character: Mr. Robert Brown
topic: Diseases of the Respiratory System
grade: 9
subject: Science
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character: Dr. Sarah Johnson
topic: Asthma and its effects on lung function
grade: 9
subject: Science
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character: Mrs. Emily Davis
topic: Chronic Obstructive Pulmonary Disease (COPD)
grade: 9
subject: Science
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character: Mr. David Smith
topic: Pneumonia: Symptoms and Treatment
grade: 9
subject: Science
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