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Paulo Casaca ( born 2 July 1957 Lisbon ) is a Portuguese politician and was a Member of the European Parliament for Portugal's  Socialist Party  ( Partido Socialista ) ; part of the  Party of European Socialists  till 2009 .
 subsidiaries: Socialist Party, Party of European Socialists
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:
 subsidiaries: Socialist Party, Party of European Socialists