1
When the Gauche was excluded from the SFIO he became one of the leaders of the new Parti Socialiste Ouvrier et Paysan (  PSOP  - Workers and Peasants  Socialist Party  ) and was at that time quite close to Leon Trotsky .
 alternate names: PSOP, Socialist Party
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:
 alternate names: PSOP, Socialist Party