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In 1848 , he was appointed by President James K. Polk as U.S. Attorney for the Southern District of New York to fill the vacancy caused by the death of Charles McVean , but was removed in 1849 by President Zachary Taylor .
 person: James K. Polk; person: Charles McVean; person: Zachary Taylor
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: James K. Polk, Charles McVean, Zachary Taylor 
Answer:
 person: James K. Polk; person: Charles McVean; person: Zachary Taylor