Question:
Who was the chair of PSL University in Jan, 2016?

Context:
 Thierry Coulhon is the chair of PSL University from Feb, 2015 to May, 2017. 
 Marc Mézard is the chair of PSL University from May, 2017 to Oct, 2017. 
 Alain Fuchs is the chair of PSL University from Oct, 2017 to Dec, 2022. 
 Monique Canto-Sperber is the chair of PSL University from Feb, 2012 to Sep, 2014.

Answer:
Question:
Who was the chair of PSL University in Jan, 2016?

Context:
 Thierry Coulhon is the chair of PSL University from Feb, 2015 to May, 2017. 
 Marc Mézard is the chair of PSL University from May, 2017 to Oct, 2017. 
 Alain Fuchs is the chair of PSL University from Oct, 2017 to Dec, 2022. 
 Monique Canto-Sperber is the chair of PSL University from Feb, 2012 to Sep, 2014.

Answer:
user
Thierry Coulhon
assistant
Question:
Who was the chair of PSL University in Jan, 2016?

Context:
 Thierry Coulhon is the chair of PSL University from Feb, 2015 to May, 2017. 
 Marc Mézard is the chair of PSL University from May, 2017 to Oct, 2017. 
 Alain Fuchs is the chair of PSL University from Oct, 2017 to Dec, 2022. 
 Monique Canto-Sperber is the chair of PSL University from Feb, 2012 to Sep, 2014.

Answer:
user
Marc Mézard
Alain Fuchs
Monique Canto-Sperber
assistant
Question:
Who was the chair of PSL University in Jan, 2016?

Context:
 Thierry Coulhon is the chair of PSL University from Feb, 2015 to May, 2017. 
 Marc Mézard is the chair of PSL University from May, 2017 to Oct, 2017. 
 Alain Fuchs is the chair of PSL University from Oct, 2017 to Dec, 2022. 
 Monique Canto-Sperber is the chair of PSL University from Feb, 2012 to Sep, 2014.

Answer:
user
Thierry Coulhon
assistant