Question:
Who was the chair of Clausthal University of Technology in Jan, 2006?

Context:
 Thomas Hanschke is the chair of Clausthal University of Technology from Oct, 2009 to Dec, 2022. 
 Edmund Brandt is the chair of Clausthal University of Technology from Jan, 2004 to Jan, 2008. 
 Albrecht Groddeck von Altraht is the chair of Clausthal University of Technology from Jan, 1867 to Jul, 1887. 
 Ernst Schaumann is the chair of Clausthal University of Technology from Jan, 2000 to Jan, 2004.

Answer:
Question:
Who was the chair of Clausthal University of Technology in Jan, 2006?

Context:
 Thomas Hanschke is the chair of Clausthal University of Technology from Oct, 2009 to Dec, 2022. 
 Edmund Brandt is the chair of Clausthal University of Technology from Jan, 2004 to Jan, 2008. 
 Albrecht Groddeck von Altraht is the chair of Clausthal University of Technology from Jan, 1867 to Jul, 1887. 
 Ernst Schaumann is the chair of Clausthal University of Technology from Jan, 2000 to Jan, 2004.

Answer:
user
Edmund Brandt
assistant
Question:
Who was the chair of Clausthal University of Technology in Jan, 2006?

Context:
 Thomas Hanschke is the chair of Clausthal University of Technology from Oct, 2009 to Dec, 2022. 
 Edmund Brandt is the chair of Clausthal University of Technology from Jan, 2004 to Jan, 2008. 
 Albrecht Groddeck von Altraht is the chair of Clausthal University of Technology from Jan, 1867 to Jul, 1887. 
 Ernst Schaumann is the chair of Clausthal University of Technology from Jan, 2000 to Jan, 2004.

Answer:
user
Thomas Hanschke
Ernst Schaumann
Albrecht Groddeck von Altraht
assistant
Question:
Who was the chair of Clausthal University of Technology in Jan, 2006?

Context:
 Thomas Hanschke is the chair of Clausthal University of Technology from Oct, 2009 to Dec, 2022. 
 Edmund Brandt is the chair of Clausthal University of Technology from Jan, 2004 to Jan, 2008. 
 Albrecht Groddeck von Altraht is the chair of Clausthal University of Technology from Jan, 1867 to Jul, 1887. 
 Ernst Schaumann is the chair of Clausthal University of Technology from Jan, 2000 to Jan, 2004.

Answer:
user
Edmund Brandt
assistant