Question:
Who was the head of Ukraine in Jun, 2013?

Context:
 Serhiy Arbuzov is the head of the government of Ukraine from Jan, 2014 to Feb, 2014. 
 Volodymyr Groysman is the head of the government of Ukraine from Apr, 2016 to Aug, 2019. 
 Yuriy Yekhanurov is the head of the government of Ukraine from May, 2006 to Aug, 2006. 
 Mykola Azarov is the head of the government of Ukraine from Mar, 2010 to Jan, 2014. 
 Denys Shmyhal is the head of the government of Ukraine from Mar, 2020 to Dec, 2022. 
 Yulia Tymoshenko is the head of the government of Ukraine from Mar, 2010 to Mar, 2010. 
 Viktor Yanukovych is the head of the government of Ukraine from Nov, 2007 to Dec, 2007. 
 Pavlo Lazarenko is the head of the government of Ukraine from May, 1996 to Jun, 1997. 
 Arseniy Yatsenyuk is the head of the government of Ukraine from Feb, 2014 to Apr, 2016. 
 Oleksiy Honcharuk is the head of the government of Ukraine from Aug, 2019 to Mar, 2020.

Answer:
Question:
Who was the head of Ukraine in Jun, 2013?

Context:
 Serhiy Arbuzov is the head of the government of Ukraine from Jan, 2014 to Feb, 2014. 
 Volodymyr Groysman is the head of the government of Ukraine from Apr, 2016 to Aug, 2019. 
 Yuriy Yekhanurov is the head of the government of Ukraine from May, 2006 to Aug, 2006. 
 Mykola Azarov is the head of the government of Ukraine from Mar, 2010 to Jan, 2014. 
 Denys Shmyhal is the head of the government of Ukraine from Mar, 2020 to Dec, 2022. 
 Yulia Tymoshenko is the head of the government of Ukraine from Mar, 2010 to Mar, 2010. 
 Viktor Yanukovych is the head of the government of Ukraine from Nov, 2007 to Dec, 2007. 
 Pavlo Lazarenko is the head of the government of Ukraine from May, 1996 to Jun, 1997. 
 Arseniy Yatsenyuk is the head of the government of Ukraine from Feb, 2014 to Apr, 2016. 
 Oleksiy Honcharuk is the head of the government of Ukraine from Aug, 2019 to Mar, 2020.

Answer:
user
Mykola Azarov
assistant
Question:
Who was the head of Ukraine in Jun, 2013?

Context:
 Serhiy Arbuzov is the head of the government of Ukraine from Jan, 2014 to Feb, 2014. 
 Volodymyr Groysman is the head of the government of Ukraine from Apr, 2016 to Aug, 2019. 
 Yuriy Yekhanurov is the head of the government of Ukraine from May, 2006 to Aug, 2006. 
 Mykola Azarov is the head of the government of Ukraine from Mar, 2010 to Jan, 2014. 
 Denys Shmyhal is the head of the government of Ukraine from Mar, 2020 to Dec, 2022. 
 Yulia Tymoshenko is the head of the government of Ukraine from Mar, 2010 to Mar, 2010. 
 Viktor Yanukovych is the head of the government of Ukraine from Nov, 2007 to Dec, 2007. 
 Pavlo Lazarenko is the head of the government of Ukraine from May, 1996 to Jun, 1997. 
 Arseniy Yatsenyuk is the head of the government of Ukraine from Feb, 2014 to Apr, 2016. 
 Oleksiy Honcharuk is the head of the government of Ukraine from Aug, 2019 to Mar, 2020.

Answer:
user
Yulia Tymoshenko
Oleksiy Honcharuk
Volodymyr Groysman
Denys Shmyhal
Yuriy Yekhanurov
Arseniy Yatsenyuk
Viktor Yanukovych
Serhiy Arbuzov
Pavlo Lazarenko
assistant
Question:
Who was the head of Ukraine in Jun, 2013?

Context:
 Serhiy Arbuzov is the head of the government of Ukraine from Jan, 2014 to Feb, 2014. 
 Volodymyr Groysman is the head of the government of Ukraine from Apr, 2016 to Aug, 2019. 
 Yuriy Yekhanurov is the head of the government of Ukraine from May, 2006 to Aug, 2006. 
 Mykola Azarov is the head of the government of Ukraine from Mar, 2010 to Jan, 2014. 
 Denys Shmyhal is the head of the government of Ukraine from Mar, 2020 to Dec, 2022. 
 Yulia Tymoshenko is the head of the government of Ukraine from Mar, 2010 to Mar, 2010. 
 Viktor Yanukovych is the head of the government of Ukraine from Nov, 2007 to Dec, 2007. 
 Pavlo Lazarenko is the head of the government of Ukraine from May, 1996 to Jun, 1997. 
 Arseniy Yatsenyuk is the head of the government of Ukraine from Feb, 2014 to Apr, 2016. 
 Oleksiy Honcharuk is the head of the government of Ukraine from Aug, 2019 to Mar, 2020.

Answer:
user
Mykola Azarov
assistant