Question:
Who was the chair of IG Metall in May, 1954?

Context:
 Hans Mayr is the chair of IG Metall from Jan, 1983 to Jan, 1986. 
 Hans Brümmer is the chair of IG Metall from Jan, 1952 to Jan, 1956. 
 Walter Freitag is the chair of IG Metall from Jan, 1949 to Jan, 1952. 
 Klaus Zwickel is the chair of IG Metall from Jan, 1993 to Jan, 2003. 
 Detlef Wetzel is the chair of IG Metall from Jan, 2013 to Jan, 2015. 
 Eugen Loderer is the chair of IG Metall from Jan, 1972 to Jan, 1983. 
 Berthold Huber is the chair of IG Metall from Jan, 2007 to Jan, 2013. 
 Otto Brenner is the chair of IG Metall from Jan, 1956 to Jan, 1972. 
 Franz Steinkühler is the chair of IG Metall from Jan, 1986 to Jan, 1993.

Answer:
Question:
Who was the chair of IG Metall in May, 1954?

Context:
 Hans Mayr is the chair of IG Metall from Jan, 1983 to Jan, 1986. 
 Hans Brümmer is the chair of IG Metall from Jan, 1952 to Jan, 1956. 
 Walter Freitag is the chair of IG Metall from Jan, 1949 to Jan, 1952. 
 Klaus Zwickel is the chair of IG Metall from Jan, 1993 to Jan, 2003. 
 Detlef Wetzel is the chair of IG Metall from Jan, 2013 to Jan, 2015. 
 Eugen Loderer is the chair of IG Metall from Jan, 1972 to Jan, 1983. 
 Berthold Huber is the chair of IG Metall from Jan, 2007 to Jan, 2013. 
 Otto Brenner is the chair of IG Metall from Jan, 1956 to Jan, 1972. 
 Franz Steinkühler is the chair of IG Metall from Jan, 1986 to Jan, 1993.

Answer:
user
Hans Brümmer
assistant
Question:
Who was the chair of IG Metall in May, 1954?

Context:
 Hans Mayr is the chair of IG Metall from Jan, 1983 to Jan, 1986. 
 Hans Brümmer is the chair of IG Metall from Jan, 1952 to Jan, 1956. 
 Walter Freitag is the chair of IG Metall from Jan, 1949 to Jan, 1952. 
 Klaus Zwickel is the chair of IG Metall from Jan, 1993 to Jan, 2003. 
 Detlef Wetzel is the chair of IG Metall from Jan, 2013 to Jan, 2015. 
 Eugen Loderer is the chair of IG Metall from Jan, 1972 to Jan, 1983. 
 Berthold Huber is the chair of IG Metall from Jan, 2007 to Jan, 2013. 
 Otto Brenner is the chair of IG Metall from Jan, 1956 to Jan, 1972. 
 Franz Steinkühler is the chair of IG Metall from Jan, 1986 to Jan, 1993.

Answer:
user
Hans Mayr
Klaus Zwickel
Berthold Huber
Detlef Wetzel
Franz Steinkühler
Eugen Loderer
Otto Brenner
Walter Freitag
assistant
Question:
Who was the chair of IG Metall in May, 1954?

Context:
 Hans Mayr is the chair of IG Metall from Jan, 1983 to Jan, 1986. 
 Hans Brümmer is the chair of IG Metall from Jan, 1952 to Jan, 1956. 
 Walter Freitag is the chair of IG Metall from Jan, 1949 to Jan, 1952. 
 Klaus Zwickel is the chair of IG Metall from Jan, 1993 to Jan, 2003. 
 Detlef Wetzel is the chair of IG Metall from Jan, 2013 to Jan, 2015. 
 Eugen Loderer is the chair of IG Metall from Jan, 1972 to Jan, 1983. 
 Berthold Huber is the chair of IG Metall from Jan, 2007 to Jan, 2013. 
 Otto Brenner is the chair of IG Metall from Jan, 1956 to Jan, 1972. 
 Franz Steinkühler is the chair of IG Metall from Jan, 1986 to Jan, 1993.

Answer:
user
Hans Brümmer
assistant