Question:
Where was Paul Dubreil educated in Apr, 1923?

Context:
 Paul Dubreil attended Lycée Saint-Louis from Jan, 1921 to Jan, 1923. 
 Paul Dubreil attended University of Hamburg from Jan, 1929 to Jan, 1930. 
 Paul Dubreil attended École normale supérieure  (Paris) from Jan, 1923 to Jan, 1926.

Answer:
Question:
Where was Paul Dubreil educated in Apr, 1923?

Context:
 Paul Dubreil attended Lycée Saint-Louis from Jan, 1921 to Jan, 1923. 
 Paul Dubreil attended University of Hamburg from Jan, 1929 to Jan, 1930. 
 Paul Dubreil attended École normale supérieure  (Paris) from Jan, 1923 to Jan, 1926.

Answer:
user
École normale supérieure  (Paris)
assistant
Question:
Where was Paul Dubreil educated in Apr, 1923?

Context:
 Paul Dubreil attended Lycée Saint-Louis from Jan, 1921 to Jan, 1923. 
 Paul Dubreil attended University of Hamburg from Jan, 1929 to Jan, 1930. 
 Paul Dubreil attended École normale supérieure  (Paris) from Jan, 1923 to Jan, 1926.

Answer:
user
Lycée Saint-Louis
University of Hamburg
assistant
Question:
Where was Paul Dubreil educated in Apr, 1923?

Context:
 Paul Dubreil attended Lycée Saint-Louis from Jan, 1921 to Jan, 1923. 
 Paul Dubreil attended University of Hamburg from Jan, 1929 to Jan, 1930. 
 Paul Dubreil attended École normale supérieure  (Paris) from Jan, 1923 to Jan, 1926.

Answer:
user
École normale supérieure  (Paris)
assistant