5859
On two occasions ( involving Earle Page in 1939 and  John McEwen  ) from December 1967 - January 1968 the leader of the National Party ( then known as the  Country  Party ) became the Prime Minister temporarily upon the death of the incumbent P.M. Sir Arthur Fadden was the only other Country Party P.M .
 None
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:
 NA: John McEwen, Country