Question:
Who was the head of Tydal in Jan, 2015?

Context:
 Jens Arne Kvello is the head of the government of Tydal from Jan, 2019 to Dec, 2022. 
 John Paulsby is the head of the government of Tydal from Jan, 2011 to Jan, 2015. 
 Ole Bjarne Østby is the head of the government of Tydal from Jan, 2015 to Jan, 2019.

Answer:
Question:
Who was the head of Tydal in Jan, 2015?

Context:
 Jens Arne Kvello is the head of the government of Tydal from Jan, 2019 to Dec, 2022. 
 John Paulsby is the head of the government of Tydal from Jan, 2011 to Jan, 2015. 
 Ole Bjarne Østby is the head of the government of Tydal from Jan, 2015 to Jan, 2019.

Answer:
user
Ole Bjarne Østby
assistant
Question:
Who was the head of Tydal in Jan, 2015?

Context:
 Jens Arne Kvello is the head of the government of Tydal from Jan, 2019 to Dec, 2022. 
 John Paulsby is the head of the government of Tydal from Jan, 2011 to Jan, 2015. 
 Ole Bjarne Østby is the head of the government of Tydal from Jan, 2015 to Jan, 2019.

Answer:
user
Jens Arne Kvello
Jens Arne Kvello
John Paulsby
assistant
Question:
Who was the head of Tydal in Jan, 2015?

Context:
 Jens Arne Kvello is the head of the government of Tydal from Jan, 2019 to Dec, 2022. 
 John Paulsby is the head of the government of Tydal from Jan, 2011 to Jan, 2015. 
 Ole Bjarne Østby is the head of the government of Tydal from Jan, 2015 to Jan, 2019.

Answer:
user
Ole Bjarne Østby
assistant