Question:
Which employer did Jean-Pierre Vallat work for in Sep, 1985?

Context:
 Jean-Pierre Vallat works for National Center for Scientific Research from Jan, 1982 to Jan, 1988. 
 Jean-Pierre Vallat works for Université Sorbonne Paris Nord from Jan, 1989 to Jan, 2000. 
 Jean-Pierre Vallat works for Paris Diderot University from Jan, 2000 to Jan, 2012.

Answer:
Question:
Which employer did Jean-Pierre Vallat work for in Sep, 1985?

Context:
 Jean-Pierre Vallat works for National Center for Scientific Research from Jan, 1982 to Jan, 1988. 
 Jean-Pierre Vallat works for Université Sorbonne Paris Nord from Jan, 1989 to Jan, 2000. 
 Jean-Pierre Vallat works for Paris Diderot University from Jan, 2000 to Jan, 2012.

Answer:
user
National Center for Scientific Research
assistant
Question:
Which employer did Jean-Pierre Vallat work for in Sep, 1985?

Context:
 Jean-Pierre Vallat works for National Center for Scientific Research from Jan, 1982 to Jan, 1988. 
 Jean-Pierre Vallat works for Université Sorbonne Paris Nord from Jan, 1989 to Jan, 2000. 
 Jean-Pierre Vallat works for Paris Diderot University from Jan, 2000 to Jan, 2012.

Answer:
user
Paris Diderot University
Université Sorbonne Paris Nord
assistant
Question:
Which employer did Jean-Pierre Vallat work for in Sep, 1985?

Context:
 Jean-Pierre Vallat works for National Center for Scientific Research from Jan, 1982 to Jan, 1988. 
 Jean-Pierre Vallat works for Université Sorbonne Paris Nord from Jan, 1989 to Jan, 2000. 
 Jean-Pierre Vallat works for Paris Diderot University from Jan, 2000 to Jan, 2012.

Answer:
user
National Center for Scientific Research
assistant