Question:
Who was the chair of Social Democratic Party in the GDR in Apr, 1990?

Context:
 Markus Meckel is the chair of Social Democratic Party in the GDR from Apr, 1990 to Jun, 1990. 
 Stephan Hilsberg is the chair of Social Democratic Party in the GDR from Oct, 1989 to Feb, 1990. 
 Wolfgang Thierse is the chair of Social Democratic Party in the GDR from Jun, 1990 to Sep, 1990. 
 Ibrahim Böhme is the chair of Social Democratic Party in the GDR from Feb, 1990 to Apr, 1990.

Answer:
Question:
Who was the chair of Social Democratic Party in the GDR in Apr, 1990?

Context:
 Markus Meckel is the chair of Social Democratic Party in the GDR from Apr, 1990 to Jun, 1990. 
 Stephan Hilsberg is the chair of Social Democratic Party in the GDR from Oct, 1989 to Feb, 1990. 
 Wolfgang Thierse is the chair of Social Democratic Party in the GDR from Jun, 1990 to Sep, 1990. 
 Ibrahim Böhme is the chair of Social Democratic Party in the GDR from Feb, 1990 to Apr, 1990.

Answer:
user
Markus Meckel
assistant
Question:
Who was the chair of Social Democratic Party in the GDR in Apr, 1990?

Context:
 Markus Meckel is the chair of Social Democratic Party in the GDR from Apr, 1990 to Jun, 1990. 
 Stephan Hilsberg is the chair of Social Democratic Party in the GDR from Oct, 1989 to Feb, 1990. 
 Wolfgang Thierse is the chair of Social Democratic Party in the GDR from Jun, 1990 to Sep, 1990. 
 Ibrahim Böhme is the chair of Social Democratic Party in the GDR from Feb, 1990 to Apr, 1990.

Answer:
user
Ibrahim Böhme
Wolfgang Thierse
Stephan Hilsberg
Wolfgang Thierse
Stephan Hilsberg
assistant
Question:
Who was the chair of Social Democratic Party in the GDR in Apr, 1990?

Context:
 Markus Meckel is the chair of Social Democratic Party in the GDR from Apr, 1990 to Jun, 1990. 
 Stephan Hilsberg is the chair of Social Democratic Party in the GDR from Oct, 1989 to Feb, 1990. 
 Wolfgang Thierse is the chair of Social Democratic Party in the GDR from Jun, 1990 to Sep, 1990. 
 Ibrahim Böhme is the chair of Social Democratic Party in the GDR from Feb, 1990 to Apr, 1990.

Answer:
user
Markus Meckel
assistant