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Mokhoff said uncertainty about when Gazprom would issue ADRs and about whether shares from the Russian market could be converted into ADRs had hurt prices .
 ADRs, Gazprom, Russian, ADRs, Mokhoff
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:
 ADRs, Gazprom, Russian, ADRs, Mokhoff