Question:
Who was the head of Hagen in Jul, 2008?

Context:
 Wilfried Horn is the head of the government of Hagen from Jan, 1999 to Jan, 2004. 
 Peter Demnitz is the head of the government of Hagen from Jan, 2004 to Jan, 2009. 
 Dietmar Thieser is the head of the government of Hagen from Jan, 1989 to Jan, 1999. 
 Erik O. Schulz is the head of the government of Hagen from Jan, 2014 to Dec, 2022. 
 Jörg Dehm is the head of the government of Hagen from Jan, 2009 to Jan, 2014.

Answer:
Question:
Who was the head of Hagen in Jul, 2008?

Context:
 Wilfried Horn is the head of the government of Hagen from Jan, 1999 to Jan, 2004. 
 Peter Demnitz is the head of the government of Hagen from Jan, 2004 to Jan, 2009. 
 Dietmar Thieser is the head of the government of Hagen from Jan, 1989 to Jan, 1999. 
 Erik O. Schulz is the head of the government of Hagen from Jan, 2014 to Dec, 2022. 
 Jörg Dehm is the head of the government of Hagen from Jan, 2009 to Jan, 2014.

Answer:
user
Peter Demnitz
assistant
Question:
Who was the head of Hagen in Jul, 2008?

Context:
 Wilfried Horn is the head of the government of Hagen from Jan, 1999 to Jan, 2004. 
 Peter Demnitz is the head of the government of Hagen from Jan, 2004 to Jan, 2009. 
 Dietmar Thieser is the head of the government of Hagen from Jan, 1989 to Jan, 1999. 
 Erik O. Schulz is the head of the government of Hagen from Jan, 2014 to Dec, 2022. 
 Jörg Dehm is the head of the government of Hagen from Jan, 2009 to Jan, 2014.

Answer:
user
Jörg Dehm
Dietmar Thieser
Erik O. Schulz
Wilfried Horn
assistant
Question:
Who was the head of Hagen in Jul, 2008?

Context:
 Wilfried Horn is the head of the government of Hagen from Jan, 1999 to Jan, 2004. 
 Peter Demnitz is the head of the government of Hagen from Jan, 2004 to Jan, 2009. 
 Dietmar Thieser is the head of the government of Hagen from Jan, 1989 to Jan, 1999. 
 Erik O. Schulz is the head of the government of Hagen from Jan, 2014 to Dec, 2022. 
 Jörg Dehm is the head of the government of Hagen from Jan, 2009 to Jan, 2014.

Answer:
user
Peter Demnitz
assistant