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The assassination attempts started under the presidency of Dwight D. Eisenhower and continued under John F. Kennedy and Lyndon B. Johnson .
 person: Dwight D. Eisenhower; person: John F. Kennedy; person: Lyndon B. Johnson
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Dwight D. Eisenhower, John F. Kennedy, Lyndon B. Johnson 
Answer:
 person: Dwight D. Eisenhower; person: John F. Kennedy; person: Lyndon B. Johnson