Question:
Who was the chair of China Writers Association in Dec, 2000?

Context:
 Mao Dun is the chair of China Writers Association from Jan, 1949 to Jan, 1981. 
 Ba Jin is the chair of China Writers Association from Jan, 1984 to Jan, 2005. 
 Tie Ning is the chair of China Writers Association from Jan, 2006 to Dec, 2022.

Answer:
Question:
Who was the chair of China Writers Association in Dec, 2000?

Context:
 Mao Dun is the chair of China Writers Association from Jan, 1949 to Jan, 1981. 
 Ba Jin is the chair of China Writers Association from Jan, 1984 to Jan, 2005. 
 Tie Ning is the chair of China Writers Association from Jan, 2006 to Dec, 2022.

Answer:
user
Ba Jin
assistant
Question:
Who was the chair of China Writers Association in Dec, 2000?

Context:
 Mao Dun is the chair of China Writers Association from Jan, 1949 to Jan, 1981. 
 Ba Jin is the chair of China Writers Association from Jan, 1984 to Jan, 2005. 
 Tie Ning is the chair of China Writers Association from Jan, 2006 to Dec, 2022.

Answer:
user
Tie Ning
Mao Dun
assistant
Question:
Who was the chair of China Writers Association in Dec, 2000?

Context:
 Mao Dun is the chair of China Writers Association from Jan, 1949 to Jan, 1981. 
 Ba Jin is the chair of China Writers Association from Jan, 1984 to Jan, 2005. 
 Tie Ning is the chair of China Writers Association from Jan, 2006 to Dec, 2022.

Answer:
user
Ba Jin
assistant