character: Mr. John Smith
topic: Industrial Applications of Catalysts
grade: 9
subject: Science
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character: Dr. Emily White
topic: Catalysts in Chemical Reactions
grade: 9
subject: Science
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character: Ms. Lisa Brown
topic: Environmental Impact of Catalysts
grade: 9
subject: Science
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character: Mr. James Green
topic: Catalysts in Energy Production
grade: 9
subject: Science
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