Question:
Who was the head of Bielefeld in Jul, 1986?

Context:
 Pit Clausen is the head of the government of Bielefeld from Jan, 2009 to Dec, 2022. 
 Klaus Schwickert is the head of the government of Bielefeld from Jan, 1975 to Jan, 1989. 
 Eberhard David is the head of the government of Bielefeld from Jan, 1989 to Jan, 1994. 
 Angelika Dopheide is the head of the government of Bielefeld from Jan, 1994 to Jan, 1999.

Answer:
Question:
Who was the head of Bielefeld in Jul, 1986?

Context:
 Pit Clausen is the head of the government of Bielefeld from Jan, 2009 to Dec, 2022. 
 Klaus Schwickert is the head of the government of Bielefeld from Jan, 1975 to Jan, 1989. 
 Eberhard David is the head of the government of Bielefeld from Jan, 1989 to Jan, 1994. 
 Angelika Dopheide is the head of the government of Bielefeld from Jan, 1994 to Jan, 1999.

Answer:
user
Klaus Schwickert
assistant
Question:
Who was the head of Bielefeld in Jul, 1986?

Context:
 Pit Clausen is the head of the government of Bielefeld from Jan, 2009 to Dec, 2022. 
 Klaus Schwickert is the head of the government of Bielefeld from Jan, 1975 to Jan, 1989. 
 Eberhard David is the head of the government of Bielefeld from Jan, 1989 to Jan, 1994. 
 Angelika Dopheide is the head of the government of Bielefeld from Jan, 1994 to Jan, 1999.

Answer:
user
Eberhard David
Angelika Dopheide
Pit Clausen
assistant
Question:
Who was the head of Bielefeld in Jul, 1986?

Context:
 Pit Clausen is the head of the government of Bielefeld from Jan, 2009 to Dec, 2022. 
 Klaus Schwickert is the head of the government of Bielefeld from Jan, 1975 to Jan, 1989. 
 Eberhard David is the head of the government of Bielefeld from Jan, 1989 to Jan, 1994. 
 Angelika Dopheide is the head of the government of Bielefeld from Jan, 1994 to Jan, 1999.

Answer:
user
Klaus Schwickert
assistant