66997
Several of Kravchenko 's works of this period were purchased by for the Imperial collections at the Hermitage in St. Petersburg .
 Kravchenko, St. Petersburg
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kravchenko, St. Petersburg