15487
1826 : The  United States  losses two of its founding fathers when  John Adams  the second U.S. president and Thomas Jefferson the third president both die on the 50th anniversary of the acceptance by Congress of the Declaration of Independence .
 employee of: United States, John Adams
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, John Adams