Question:
Who was the chair of Social Democratic Party in Nov, 2015?

Context:
 Jüri Pihl is the chair of Social Democratic Party from Jan, 2009 to Jan, 2010. 
 Lauri Läänemets is the chair of Social Democratic Party from Feb, 2022 to Dec, 2022. 
 Jevgeni Ossinovski is the chair of Social Democratic Party from Jan, 2015 to Jan, 2019.

Answer:
Question:
Who was the chair of Social Democratic Party in Nov, 2015?

Context:
 Jüri Pihl is the chair of Social Democratic Party from Jan, 2009 to Jan, 2010. 
 Lauri Läänemets is the chair of Social Democratic Party from Feb, 2022 to Dec, 2022. 
 Jevgeni Ossinovski is the chair of Social Democratic Party from Jan, 2015 to Jan, 2019.

Answer:
user
Jevgeni Ossinovski
assistant
Question:
Who was the chair of Social Democratic Party in Nov, 2015?

Context:
 Jüri Pihl is the chair of Social Democratic Party from Jan, 2009 to Jan, 2010. 
 Lauri Läänemets is the chair of Social Democratic Party from Feb, 2022 to Dec, 2022. 
 Jevgeni Ossinovski is the chair of Social Democratic Party from Jan, 2015 to Jan, 2019.

Answer:
user
Lauri Läänemets
Jüri Pihl
assistant
Question:
Who was the chair of Social Democratic Party in Nov, 2015?

Context:
 Jüri Pihl is the chair of Social Democratic Party from Jan, 2009 to Jan, 2010. 
 Lauri Läänemets is the chair of Social Democratic Party from Feb, 2022 to Dec, 2022. 
 Jevgeni Ossinovski is the chair of Social Democratic Party from Jan, 2015 to Jan, 2019.

Answer:
user
Jevgeni Ossinovski
assistant