Question:
Who was the chair of Wood and Plastic Union in May, 1955?

Context:
 Gisbert Schlemmer is the chair of Wood and Plastic Union from Jan, 1993 to Jan, 1999. 
 Heinz Seeger is the chair of Wood and Plastic Union from Jan, 1953 to Jan, 1958. 
 Franz Valentiner is the chair of Wood and Plastic Union from Jan, 1951 to Jan, 1953. 
 Gerhard Vater is the chair of Wood and Plastic Union from Jan, 1958 to Jan, 1977. 
 Kurt Georgi is the chair of Wood and Plastic Union from Jan, 1977 to Jan, 1981. 
 Horst Morich is the chair of Wood and Plastic Union from Jan, 1981 to Jan, 1993. 
 Markus Schleicher is the chair of Wood and Plastic Union from Jan, 1949 to Jan, 1951.

Answer:
Question:
Who was the chair of Wood and Plastic Union in May, 1955?

Context:
 Gisbert Schlemmer is the chair of Wood and Plastic Union from Jan, 1993 to Jan, 1999. 
 Heinz Seeger is the chair of Wood and Plastic Union from Jan, 1953 to Jan, 1958. 
 Franz Valentiner is the chair of Wood and Plastic Union from Jan, 1951 to Jan, 1953. 
 Gerhard Vater is the chair of Wood and Plastic Union from Jan, 1958 to Jan, 1977. 
 Kurt Georgi is the chair of Wood and Plastic Union from Jan, 1977 to Jan, 1981. 
 Horst Morich is the chair of Wood and Plastic Union from Jan, 1981 to Jan, 1993. 
 Markus Schleicher is the chair of Wood and Plastic Union from Jan, 1949 to Jan, 1951.

Answer:
user
Heinz Seeger
assistant
Question:
Who was the chair of Wood and Plastic Union in May, 1955?

Context:
 Gisbert Schlemmer is the chair of Wood and Plastic Union from Jan, 1993 to Jan, 1999. 
 Heinz Seeger is the chair of Wood and Plastic Union from Jan, 1953 to Jan, 1958. 
 Franz Valentiner is the chair of Wood and Plastic Union from Jan, 1951 to Jan, 1953. 
 Gerhard Vater is the chair of Wood and Plastic Union from Jan, 1958 to Jan, 1977. 
 Kurt Georgi is the chair of Wood and Plastic Union from Jan, 1977 to Jan, 1981. 
 Horst Morich is the chair of Wood and Plastic Union from Jan, 1981 to Jan, 1993. 
 Markus Schleicher is the chair of Wood and Plastic Union from Jan, 1949 to Jan, 1951.

Answer:
user
Markus Schleicher
Franz Valentiner
Horst Morich
Kurt Georgi
Gisbert Schlemmer
Gerhard Vater
assistant
Question:
Who was the chair of Wood and Plastic Union in May, 1955?

Context:
 Gisbert Schlemmer is the chair of Wood and Plastic Union from Jan, 1993 to Jan, 1999. 
 Heinz Seeger is the chair of Wood and Plastic Union from Jan, 1953 to Jan, 1958. 
 Franz Valentiner is the chair of Wood and Plastic Union from Jan, 1951 to Jan, 1953. 
 Gerhard Vater is the chair of Wood and Plastic Union from Jan, 1958 to Jan, 1977. 
 Kurt Georgi is the chair of Wood and Plastic Union from Jan, 1977 to Jan, 1981. 
 Horst Morich is the chair of Wood and Plastic Union from Jan, 1981 to Jan, 1993. 
 Markus Schleicher is the chair of Wood and Plastic Union from Jan, 1949 to Jan, 1951.

Answer:
user
Heinz Seeger
assistant