1909
During Friday ' s debate , Duma speaker Gennady Seleznyov said officials had received an anonymous telephone call saying a bomb had been planted in the building .
 Duma, Duma speaker, Duma speaker Gennady Seleznyov, officials, the building, a bomb
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 Duma, Duma speaker, Duma speaker Gennady Seleznyov, officials, the building, a bomb