character: Mr. Smith
topic: Blockchain Basics
grade: 10
subject: Computer Science
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character: Mr. Johnson
topic: Introduction to Cryptography
grade: 10
subject: Computer Science
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character: Ms. Lee
topic: Smart Contracts Explained
grade: 10
subject: Computer Science
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character: Mr. Patel
topic: Decentralized Applications (DApps)
grade: 10
subject: Computer Science
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