Question:
Which employer did Julio Rey Pastor work for in Jun, 1939?

Context:
 Julio Rey Pastor works for University of Buenos Aires from Jan, 1927 to Jan, 1952. 
 Julio Rey Pastor works for University of Oviedo from Jan, 1911 to Jan, 1915. 
 Julio Rey Pastor works for Complutense University of Madrid from Jan, 1915 to Jan, 1927.

Answer:
Question:
Which employer did Julio Rey Pastor work for in Jun, 1939?

Context:
 Julio Rey Pastor works for University of Buenos Aires from Jan, 1927 to Jan, 1952. 
 Julio Rey Pastor works for University of Oviedo from Jan, 1911 to Jan, 1915. 
 Julio Rey Pastor works for Complutense University of Madrid from Jan, 1915 to Jan, 1927.

Answer:
user
University of Buenos Aires
assistant
Question:
Which employer did Julio Rey Pastor work for in Jun, 1939?

Context:
 Julio Rey Pastor works for University of Buenos Aires from Jan, 1927 to Jan, 1952. 
 Julio Rey Pastor works for University of Oviedo from Jan, 1911 to Jan, 1915. 
 Julio Rey Pastor works for Complutense University of Madrid from Jan, 1915 to Jan, 1927.

Answer:
user
University of Oviedo
Complutense University of Madrid
assistant
Question:
Which employer did Julio Rey Pastor work for in Jun, 1939?

Context:
 Julio Rey Pastor works for University of Buenos Aires from Jan, 1927 to Jan, 1952. 
 Julio Rey Pastor works for University of Oviedo from Jan, 1911 to Jan, 1915. 
 Julio Rey Pastor works for Complutense University of Madrid from Jan, 1915 to Jan, 1927.

Answer:
user
University of Buenos Aires
assistant