137573
After the outbreak of the Russian Revolution of 1917 , he chaired the Vologda Ispolkom ( " executive committee " ) and moved to Moscow in December 1918 .
 Vologda, Moscow
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Vologda, Moscow