Question:
Who was the chair of Alternative Democratic Reform Party in Jan, 2013?

Context:
 Gaston Gibéryen is the chair of Alternative Democratic Reform Party from Jul, 1987 to Nov, 1989. 
 Robert Mehlen is the chair of Alternative Democratic Reform Party from Dec, 2012 to Mar, 2013. 
 Fernand Kartheiser is the chair of Alternative Democratic Reform Party from Mar, 2012 to Dec, 2012. 
 John Bram is the chair of Alternative Democratic Reform Party from Nov, 1989 to Dec, 1991.

Answer:
Question:
Who was the chair of Alternative Democratic Reform Party in Jan, 2013?

Context:
 Gaston Gibéryen is the chair of Alternative Democratic Reform Party from Jul, 1987 to Nov, 1989. 
 Robert Mehlen is the chair of Alternative Democratic Reform Party from Dec, 2012 to Mar, 2013. 
 Fernand Kartheiser is the chair of Alternative Democratic Reform Party from Mar, 2012 to Dec, 2012. 
 John Bram is the chair of Alternative Democratic Reform Party from Nov, 1989 to Dec, 1991.

Answer:
user
Robert Mehlen
assistant
Question:
Who was the chair of Alternative Democratic Reform Party in Jan, 2013?

Context:
 Gaston Gibéryen is the chair of Alternative Democratic Reform Party from Jul, 1987 to Nov, 1989. 
 Robert Mehlen is the chair of Alternative Democratic Reform Party from Dec, 2012 to Mar, 2013. 
 Fernand Kartheiser is the chair of Alternative Democratic Reform Party from Mar, 2012 to Dec, 2012. 
 John Bram is the chair of Alternative Democratic Reform Party from Nov, 1989 to Dec, 1991.

Answer:
user
Fernand Kartheiser
Gaston Gibéryen
John Bram
assistant
Question:
Who was the chair of Alternative Democratic Reform Party in Jan, 2013?

Context:
 Gaston Gibéryen is the chair of Alternative Democratic Reform Party from Jul, 1987 to Nov, 1989. 
 Robert Mehlen is the chair of Alternative Democratic Reform Party from Dec, 2012 to Mar, 2013. 
 Fernand Kartheiser is the chair of Alternative Democratic Reform Party from Mar, 2012 to Dec, 2012. 
 John Bram is the chair of Alternative Democratic Reform Party from Nov, 1989 to Dec, 1991.

Answer:
user
Robert Mehlen
assistant