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Eisenhower National Historic Site was the home and farm of General and President of the  United States   Dwight D. Eisenhower  and Mamie Doud Eisenhower .
 employee of: United States, Dwight D. Eisenhower
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 employee of: United States, Dwight D. Eisenhower