1284
The city of Grozny , pounded by Russian planes and artillery for hours on Wednesday , calmed down overnight , although sporadic explosions and shooting could still be heard .
 Grozny, Russian
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Grozny, Russian