character: Albert Einstein
topic: Theory of General Relativity
grade: 9
subject: Science
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character: Isaac Newton
topic: Laws of Motion
grade: 9
subject: Science
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character: Stephen Hawking
topic: Black Holes and the Universe
grade: 9
subject: Science
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character: Galileo Galilei
topic: Principle of Inertia
grade: 9
subject: Science
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