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In 1903 , following the split of the RSDLP , Lenin left the staff ( after his initial proposal to reduce the editorial board to three - himself , Julius Martov and Georgi Plekhanov - was vehemently opposed ) , the newspaper fell under the control of the Menshevik s and was published by Plekhanov until 1905 .
 Lenin, Julius Martov, Georgi Plekhanov, Menshevik, Plekhanov
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Lenin, Julius Martov, Georgi Plekhanov, Menshevik, Plekhanov