question: Which four men are engraved on Mount Rushmore and were presidents of the United States?
answerText: George Washington, Abraham Lincoln, Thomas Jefferson, and Theodore Roosevelt
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questionEntity.label: United States of America
questionEntity.mention: United States
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questionEntity.label: Mount Rushmore
questionEntity.mention: Mount Rushmore
questionEntity.name: 4
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answerEntity.label: George Washington
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answerEntity.label: Abraham Lincoln
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answerEntity.label: Thomas Jefferson
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answerEntity.label: Theodore Roosevelt