Question:
Who was the chair of Comintern in Oct, 1924?

Context:
 Nikolai Bukharin is the chair of Comintern from Jan, 1926 to Jan, 1929. 
 Grigory Zinoviev is the chair of Comintern from Mar, 1919 to Jan, 1926. 
 Georgi Dimitrov is the chair of Comintern from Jan, 1929 to Jan, 1943.

Answer:
Question:
Who was the chair of Comintern in Oct, 1924?

Context:
 Nikolai Bukharin is the chair of Comintern from Jan, 1926 to Jan, 1929. 
 Grigory Zinoviev is the chair of Comintern from Mar, 1919 to Jan, 1926. 
 Georgi Dimitrov is the chair of Comintern from Jan, 1929 to Jan, 1943.

Answer:
user
Grigory Zinoviev
assistant
Question:
Who was the chair of Comintern in Oct, 1924?

Context:
 Nikolai Bukharin is the chair of Comintern from Jan, 1926 to Jan, 1929. 
 Grigory Zinoviev is the chair of Comintern from Mar, 1919 to Jan, 1926. 
 Georgi Dimitrov is the chair of Comintern from Jan, 1929 to Jan, 1943.

Answer:
user
Nikolai Bukharin
Georgi Dimitrov
assistant
Question:
Who was the chair of Comintern in Oct, 1924?

Context:
 Nikolai Bukharin is the chair of Comintern from Jan, 1926 to Jan, 1929. 
 Grigory Zinoviev is the chair of Comintern from Mar, 1919 to Jan, 1926. 
 Georgi Dimitrov is the chair of Comintern from Jan, 1929 to Jan, 1943.

Answer:
user
Grigory Zinoviev
assistant