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Forced to leave Russia and with other radical political figures living in exile , Martov joined the Russian Social Democratic Labour Party ( RSDLP ) and , in 1900 , was one of the founding members , with Lenin , of the party journal Iskra .
 Russia, Martov, Russian Social Democratic Labour Party, Lenin, Iskra
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Russia, Martov, Russian Social Democratic Labour Party, Lenin, Iskra