character: Archduke Franz Ferdinand
topic: Assassination of Franz Ferdinand
grade: 4
subject: History
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character: Gavrilo Princip
topic: Assassination of Franz Ferdinand
grade: 4
subject: History
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character: Austria-Hungary
topic: Prelude to World War I
grade: 4
subject: History
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character: Serbia
topic: Causes of World War I
grade: 4
subject: History
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