Question:
Who was the chair of State Assembly of the Sakha Republic in Apr, 2016?

Context:
 Pyotr Gogolev is the chair of State Assembly of the Sakha Republic from Sep, 2018 to Jun, 2021. 
 A. N. Zhirkov is the chair of State Assembly of the Sakha Republic from Jan, 2013 to Jan, 2018. 
 Vitaliy Nikolaevitsj Basigisov is the chair of State Assembly of the Sakha Republic from Jan, 2008 to Jan, 2013.

Answer:
Question:
Who was the chair of State Assembly of the Sakha Republic in Apr, 2016?

Context:
 Pyotr Gogolev is the chair of State Assembly of the Sakha Republic from Sep, 2018 to Jun, 2021. 
 A. N. Zhirkov is the chair of State Assembly of the Sakha Republic from Jan, 2013 to Jan, 2018. 
 Vitaliy Nikolaevitsj Basigisov is the chair of State Assembly of the Sakha Republic from Jan, 2008 to Jan, 2013.

Answer:
user
A. N. Zhirkov
assistant
Question:
Who was the chair of State Assembly of the Sakha Republic in Apr, 2016?

Context:
 Pyotr Gogolev is the chair of State Assembly of the Sakha Republic from Sep, 2018 to Jun, 2021. 
 A. N. Zhirkov is the chair of State Assembly of the Sakha Republic from Jan, 2013 to Jan, 2018. 
 Vitaliy Nikolaevitsj Basigisov is the chair of State Assembly of the Sakha Republic from Jan, 2008 to Jan, 2013.

Answer:
user
Pyotr Gogolev
Vitaliy Nikolaevitsj Basigisov
assistant
Question:
Who was the chair of State Assembly of the Sakha Republic in Apr, 2016?

Context:
 Pyotr Gogolev is the chair of State Assembly of the Sakha Republic from Sep, 2018 to Jun, 2021. 
 A. N. Zhirkov is the chair of State Assembly of the Sakha Republic from Jan, 2013 to Jan, 2018. 
 Vitaliy Nikolaevitsj Basigisov is the chair of State Assembly of the Sakha Republic from Jan, 2008 to Jan, 2013.

Answer:
user
A. N. Zhirkov
assistant