Who was the longest-serving chief justice in U.S. history?
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Puerto Rico is an administrative territorial entity in the United States of America.
The United States of America is the country of Puerto Rico , where the administrative entity is the U.S.A .
Who was the longest-serving chief justice in U.S. history?</s> [unused1]Puerto Rico                [unused2] is an administrative territorial entity in the United States of America.
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