Question:
Who was the chair of 50PLUS in Feb, 2013?

Context:
 Geert Dales is the chair of 50PLUS from Apr, 2020 to May, 2020. 
 John Struijlaard is the chair of 50PLUS from Mar, 2014 to Jun, 2016. 
 Jan Nagel is the chair of 50PLUS from Aug, 2020 to May, 2021. 
 Jan Zoetelief is the chair of 50PLUS from Jun, 2017 to May, 2018. 
 Willem Holthuizen is the chair of 50PLUS from Nov, 2012 to Sep, 2013.

Answer:
Question:
Who was the chair of 50PLUS in Feb, 2013?

Context:
 Geert Dales is the chair of 50PLUS from Apr, 2020 to May, 2020. 
 John Struijlaard is the chair of 50PLUS from Mar, 2014 to Jun, 2016. 
 Jan Nagel is the chair of 50PLUS from Aug, 2020 to May, 2021. 
 Jan Zoetelief is the chair of 50PLUS from Jun, 2017 to May, 2018. 
 Willem Holthuizen is the chair of 50PLUS from Nov, 2012 to Sep, 2013.

Answer:
user
Willem Holthuizen
assistant
Question:
Who was the chair of 50PLUS in Feb, 2013?

Context:
 Geert Dales is the chair of 50PLUS from Apr, 2020 to May, 2020. 
 John Struijlaard is the chair of 50PLUS from Mar, 2014 to Jun, 2016. 
 Jan Nagel is the chair of 50PLUS from Aug, 2020 to May, 2021. 
 Jan Zoetelief is the chair of 50PLUS from Jun, 2017 to May, 2018. 
 Willem Holthuizen is the chair of 50PLUS from Nov, 2012 to Sep, 2013.

Answer:
user
John Struijlaard
Jan Nagel
Geert Dales
Jan Zoetelief
assistant
Question:
Who was the chair of 50PLUS in Feb, 2013?

Context:
 Geert Dales is the chair of 50PLUS from Apr, 2020 to May, 2020. 
 John Struijlaard is the chair of 50PLUS from Mar, 2014 to Jun, 2016. 
 Jan Nagel is the chair of 50PLUS from Aug, 2020 to May, 2021. 
 Jan Zoetelief is the chair of 50PLUS from Jun, 2017 to May, 2018. 
 Willem Holthuizen is the chair of 50PLUS from Nov, 2012 to Sep, 2013.

Answer:
user
Willem Holthuizen
assistant