Question:
Which employer did Alexander Grothendieck work for in Apr, 1970?

Context:
 Alexander Grothendieck works for Collège de France from Jan, 1970 to Jan, 1972. 
 Alexander Grothendieck works for National Center for Scientific Research from Jan, 1984 to Jan, 1988. 
 Alexander Grothendieck works for University of Montpellier from Jan, 1973 to Jan, 1984. 
 Alexander Grothendieck works for University of Paris-Sud from Jan, 1972 to Jan, 1973. 
 Alexander Grothendieck works for Institut des hautes études scientifiques from Jan, 1959 to Jan, 1970.

Answer:
Question:
Which employer did Alexander Grothendieck work for in Apr, 1970?

Context:
 Alexander Grothendieck works for Collège de France from Jan, 1970 to Jan, 1972. 
 Alexander Grothendieck works for National Center for Scientific Research from Jan, 1984 to Jan, 1988. 
 Alexander Grothendieck works for University of Montpellier from Jan, 1973 to Jan, 1984. 
 Alexander Grothendieck works for University of Paris-Sud from Jan, 1972 to Jan, 1973. 
 Alexander Grothendieck works for Institut des hautes études scientifiques from Jan, 1959 to Jan, 1970.

Answer:
user
Collège de France
assistant
Question:
Which employer did Alexander Grothendieck work for in Apr, 1970?

Context:
 Alexander Grothendieck works for Collège de France from Jan, 1970 to Jan, 1972. 
 Alexander Grothendieck works for National Center for Scientific Research from Jan, 1984 to Jan, 1988. 
 Alexander Grothendieck works for University of Montpellier from Jan, 1973 to Jan, 1984. 
 Alexander Grothendieck works for University of Paris-Sud from Jan, 1972 to Jan, 1973. 
 Alexander Grothendieck works for Institut des hautes études scientifiques from Jan, 1959 to Jan, 1970.

Answer:
user
University of Montpellier
University of Paris-Sud
Institut des hautes études scientifiques
National Center for Scientific Research
assistant
Question:
Which employer did Alexander Grothendieck work for in Apr, 1970?

Context:
 Alexander Grothendieck works for Collège de France from Jan, 1970 to Jan, 1972. 
 Alexander Grothendieck works for National Center for Scientific Research from Jan, 1984 to Jan, 1988. 
 Alexander Grothendieck works for University of Montpellier from Jan, 1973 to Jan, 1984. 
 Alexander Grothendieck works for University of Paris-Sud from Jan, 1972 to Jan, 1973. 
 Alexander Grothendieck works for Institut des hautes études scientifiques from Jan, 1959 to Jan, 1970.

Answer:
user
Collège de France
assistant