47963
By the 1860 s , Novgorod , Vyatka and Saratov governorates also had significant accordion production .
 Novgorod, Vyatka, Saratov
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Novgorod, Vyatka, Saratov