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On returning to Spain in 1971  Solana  joined the Democratic Co-ordination of Madrid as the Spanish  Socialist Workers ' Party  ( PSOE ) representative .
 employee of: Solana, Socialist Workers ' Party
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Solana, Socialist Workers ' Party 
Answer:
 employee of: Solana, Socialist Workers ' Party