Question:
Which employer did Charles Pisot work for in May, 1953?

Context:
 Charles Pisot works for University of Freiburg from Jan, 1944 to Jan, 1945. 
 Charles Pisot works for University of Greifswald from Jan, 1941 to Jan, 1944. 
 Charles Pisot works for École polytechnique from Jan, 1955 to Jan, 1979. 
 Charles Pisot works for Science Faculty of Paris from Jan, 1955 to Jan, 1979. 
 Charles Pisot works for University of Bordeaux from Jan, 1946 to Jan, 1955.

Answer:
Question:
Which employer did Charles Pisot work for in May, 1953?

Context:
 Charles Pisot works for University of Freiburg from Jan, 1944 to Jan, 1945. 
 Charles Pisot works for University of Greifswald from Jan, 1941 to Jan, 1944. 
 Charles Pisot works for École polytechnique from Jan, 1955 to Jan, 1979. 
 Charles Pisot works for Science Faculty of Paris from Jan, 1955 to Jan, 1979. 
 Charles Pisot works for University of Bordeaux from Jan, 1946 to Jan, 1955.

Answer:
user
University of Bordeaux
assistant
Question:
Which employer did Charles Pisot work for in May, 1953?

Context:
 Charles Pisot works for University of Freiburg from Jan, 1944 to Jan, 1945. 
 Charles Pisot works for University of Greifswald from Jan, 1941 to Jan, 1944. 
 Charles Pisot works for École polytechnique from Jan, 1955 to Jan, 1979. 
 Charles Pisot works for Science Faculty of Paris from Jan, 1955 to Jan, 1979. 
 Charles Pisot works for University of Bordeaux from Jan, 1946 to Jan, 1955.

Answer:
user
Science Faculty of Paris
University of Freiburg
École polytechnique
University of Greifswald
assistant
Question:
Which employer did Charles Pisot work for in May, 1953?

Context:
 Charles Pisot works for University of Freiburg from Jan, 1944 to Jan, 1945. 
 Charles Pisot works for University of Greifswald from Jan, 1941 to Jan, 1944. 
 Charles Pisot works for École polytechnique from Jan, 1955 to Jan, 1979. 
 Charles Pisot works for Science Faculty of Paris from Jan, 1955 to Jan, 1979. 
 Charles Pisot works for University of Bordeaux from Jan, 1946 to Jan, 1955.

Answer:
user
University of Bordeaux
assistant