Question:
Who was the head of Schleswig-Holstein in Apr, 1957?

Context:
 Helmut Lemke is the head of the government of Schleswig-Holstein from Jan, 1963 to Jan, 1971. 
 Björn Engholm is the head of the government of Schleswig-Holstein from Jan, 1988 to Jan, 1993. 
 Peter Harry Carstensen is the head of the government of Schleswig-Holstein from Jan, 2005 to Jan, 2012. 
 Friedrich Wilhelm Lübke is the head of the government of Schleswig-Holstein from Jan, 1951 to Jan, 1954. 
 Theodor Steltzer is the head of the government of Schleswig-Holstein from Jan, 1946 to Jan, 1947. 
 Walter Bartram is the head of the government of Schleswig-Holstein from Jan, 1950 to Jan, 1951. 
 Henning Schwarz is the head of the government of Schleswig-Holstein from Jan, 1987 to Jan, 1988. 
 Daniel Günther is the head of the government of Schleswig-Holstein from Jan, 2017 to Dec, 2022. 
 Torsten Albig is the head of the government of Schleswig-Holstein from Jan, 2012 to Jan, 2017. 
 Gerhard Stoltenberg is the head of the government of Schleswig-Holstein from Jan, 1971 to Jan, 1982. 
 Hermann Lüdemann is the head of the government of Schleswig-Holstein from Jan, 1947 to Jan, 1949. 
 Heide Simonis is the head of the government of Schleswig-Holstein from Jan, 1993 to Jan, 2005. 
 Kai-Uwe von Hassel is the head of the government of Schleswig-Holstein from Jan, 1954 to Jan, 1963. 
 Uwe Barschel is the head of the government of Schleswig-Holstein from Jan, 1982 to Jan, 1987. 
 Bruno Diekmann is the head of the government of Schleswig-Holstein from Aug, 1949 to Sep, 1950.

Answer:
Question:
Who was the head of Schleswig-Holstein in Apr, 1957?

Context:
 Helmut Lemke is the head of the government of Schleswig-Holstein from Jan, 1963 to Jan, 1971. 
 Björn Engholm is the head of the government of Schleswig-Holstein from Jan, 1988 to Jan, 1993. 
 Peter Harry Carstensen is the head of the government of Schleswig-Holstein from Jan, 2005 to Jan, 2012. 
 Friedrich Wilhelm Lübke is the head of the government of Schleswig-Holstein from Jan, 1951 to Jan, 1954. 
 Theodor Steltzer is the head of the government of Schleswig-Holstein from Jan, 1946 to Jan, 1947. 
 Walter Bartram is the head of the government of Schleswig-Holstein from Jan, 1950 to Jan, 1951. 
 Henning Schwarz is the head of the government of Schleswig-Holstein from Jan, 1987 to Jan, 1988. 
 Daniel Günther is the head of the government of Schleswig-Holstein from Jan, 2017 to Dec, 2022. 
 Torsten Albig is the head of the government of Schleswig-Holstein from Jan, 2012 to Jan, 2017. 
 Gerhard Stoltenberg is the head of the government of Schleswig-Holstein from Jan, 1971 to Jan, 1982. 
 Hermann Lüdemann is the head of the government of Schleswig-Holstein from Jan, 1947 to Jan, 1949. 
 Heide Simonis is the head of the government of Schleswig-Holstein from Jan, 1993 to Jan, 2005. 
 Kai-Uwe von Hassel is the head of the government of Schleswig-Holstein from Jan, 1954 to Jan, 1963. 
 Uwe Barschel is the head of the government of Schleswig-Holstein from Jan, 1982 to Jan, 1987. 
 Bruno Diekmann is the head of the government of Schleswig-Holstein from Aug, 1949 to Sep, 1950.

Answer:
user
Kai-Uwe von Hassel
assistant
Question:
Who was the head of Schleswig-Holstein in Apr, 1957?

Context:
 Helmut Lemke is the head of the government of Schleswig-Holstein from Jan, 1963 to Jan, 1971. 
 Björn Engholm is the head of the government of Schleswig-Holstein from Jan, 1988 to Jan, 1993. 
 Peter Harry Carstensen is the head of the government of Schleswig-Holstein from Jan, 2005 to Jan, 2012. 
 Friedrich Wilhelm Lübke is the head of the government of Schleswig-Holstein from Jan, 1951 to Jan, 1954. 
 Theodor Steltzer is the head of the government of Schleswig-Holstein from Jan, 1946 to Jan, 1947. 
 Walter Bartram is the head of the government of Schleswig-Holstein from Jan, 1950 to Jan, 1951. 
 Henning Schwarz is the head of the government of Schleswig-Holstein from Jan, 1987 to Jan, 1988. 
 Daniel Günther is the head of the government of Schleswig-Holstein from Jan, 2017 to Dec, 2022. 
 Torsten Albig is the head of the government of Schleswig-Holstein from Jan, 2012 to Jan, 2017. 
 Gerhard Stoltenberg is the head of the government of Schleswig-Holstein from Jan, 1971 to Jan, 1982. 
 Hermann Lüdemann is the head of the government of Schleswig-Holstein from Jan, 1947 to Jan, 1949. 
 Heide Simonis is the head of the government of Schleswig-Holstein from Jan, 1993 to Jan, 2005. 
 Kai-Uwe von Hassel is the head of the government of Schleswig-Holstein from Jan, 1954 to Jan, 1963. 
 Uwe Barschel is the head of the government of Schleswig-Holstein from Jan, 1982 to Jan, 1987. 
 Bruno Diekmann is the head of the government of Schleswig-Holstein from Aug, 1949 to Sep, 1950.

Answer:
user
Björn Engholm
Theodor Steltzer
Hermann Lüdemann
Helmut Lemke
Henning Schwarz
Bruno Diekmann
Peter Harry Carstensen
Walter Bartram
Torsten Albig
Gerhard Stoltenberg
Heide Simonis
Friedrich Wilhelm Lübke
Uwe Barschel
Daniel Günther
assistant
Question:
Who was the head of Schleswig-Holstein in Apr, 1957?

Context:
 Helmut Lemke is the head of the government of Schleswig-Holstein from Jan, 1963 to Jan, 1971. 
 Björn Engholm is the head of the government of Schleswig-Holstein from Jan, 1988 to Jan, 1993. 
 Peter Harry Carstensen is the head of the government of Schleswig-Holstein from Jan, 2005 to Jan, 2012. 
 Friedrich Wilhelm Lübke is the head of the government of Schleswig-Holstein from Jan, 1951 to Jan, 1954. 
 Theodor Steltzer is the head of the government of Schleswig-Holstein from Jan, 1946 to Jan, 1947. 
 Walter Bartram is the head of the government of Schleswig-Holstein from Jan, 1950 to Jan, 1951. 
 Henning Schwarz is the head of the government of Schleswig-Holstein from Jan, 1987 to Jan, 1988. 
 Daniel Günther is the head of the government of Schleswig-Holstein from Jan, 2017 to Dec, 2022. 
 Torsten Albig is the head of the government of Schleswig-Holstein from Jan, 2012 to Jan, 2017. 
 Gerhard Stoltenberg is the head of the government of Schleswig-Holstein from Jan, 1971 to Jan, 1982. 
 Hermann Lüdemann is the head of the government of Schleswig-Holstein from Jan, 1947 to Jan, 1949. 
 Heide Simonis is the head of the government of Schleswig-Holstein from Jan, 1993 to Jan, 2005. 
 Kai-Uwe von Hassel is the head of the government of Schleswig-Holstein from Jan, 1954 to Jan, 1963. 
 Uwe Barschel is the head of the government of Schleswig-Holstein from Jan, 1982 to Jan, 1987. 
 Bruno Diekmann is the head of the government of Schleswig-Holstein from Aug, 1949 to Sep, 1950.

Answer:
user
Kai-Uwe von Hassel
assistant