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When President Eisenhower left office in January 1961 , Mrs. Whitman accompanied him to his farm ( now the Eisenhower National Historic Site ) in Gettysburg , Pennsylvania and continued to work for a few months as his personal secretary .
 person: Eisenhower; person: Whitman; person: Eisenhower; location: Gettysburg , Pennsylvania
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: Eisenhower, Whitman, Eisenhower, Gettysburg , Pennsylvania 
Answer:
 person: Eisenhower; person: Whitman; person: Eisenhower; location: Gettysburg , Pennsylvania