Question:
Who was the head of Moscow in Feb, 2014?

Context:
 Sergey Sobyanin is the head of the government of Moscow from Oct, 2010 to Dec, 2022. 
 Gavriil Kharitonovich Popov is the head of the government of Moscow from Jan, 1991 to Jan, 1992. 
 Yury Luzhkov is the head of the government of Moscow from Jan, 1992 to Jan, 2010.

Answer:
Question:
Who was the head of Moscow in Feb, 2014?

Context:
 Sergey Sobyanin is the head of the government of Moscow from Oct, 2010 to Dec, 2022. 
 Gavriil Kharitonovich Popov is the head of the government of Moscow from Jan, 1991 to Jan, 1992. 
 Yury Luzhkov is the head of the government of Moscow from Jan, 1992 to Jan, 2010.

Answer:
user
Sergey Sobyanin
assistant
Question:
Who was the head of Moscow in Feb, 2014?

Context:
 Sergey Sobyanin is the head of the government of Moscow from Oct, 2010 to Dec, 2022. 
 Gavriil Kharitonovich Popov is the head of the government of Moscow from Jan, 1991 to Jan, 1992. 
 Yury Luzhkov is the head of the government of Moscow from Jan, 1992 to Jan, 2010.

Answer:
user
Yury Luzhkov
Gavriil Kharitonovich Popov
assistant
Question:
Who was the head of Moscow in Feb, 2014?

Context:
 Sergey Sobyanin is the head of the government of Moscow from Oct, 2010 to Dec, 2022. 
 Gavriil Kharitonovich Popov is the head of the government of Moscow from Jan, 1991 to Jan, 1992. 
 Yury Luzhkov is the head of the government of Moscow from Jan, 1992 to Jan, 2010.

Answer:
user
Sergey Sobyanin
assistant