Question:
Which employer did E.G.D. Cohen work for in May, 1979?

Context:
 E.G.D. Cohen works for University of Amsterdam from Sep, 1961 to Sep, 1963. 
 E.G.D. Cohen works for Utrecht University from Apr, 1988 to Aug, 1988. 
 E.G.D. Cohen works for Leiden University from Nov, 1978 to Jun, 1979.

Answer:
Question:
Which employer did E.G.D. Cohen work for in May, 1979?

Context:
 E.G.D. Cohen works for University of Amsterdam from Sep, 1961 to Sep, 1963. 
 E.G.D. Cohen works for Utrecht University from Apr, 1988 to Aug, 1988. 
 E.G.D. Cohen works for Leiden University from Nov, 1978 to Jun, 1979.

Answer:
user
Leiden University
assistant
Question:
Which employer did E.G.D. Cohen work for in May, 1979?

Context:
 E.G.D. Cohen works for University of Amsterdam from Sep, 1961 to Sep, 1963. 
 E.G.D. Cohen works for Utrecht University from Apr, 1988 to Aug, 1988. 
 E.G.D. Cohen works for Leiden University from Nov, 1978 to Jun, 1979.

Answer:
user
University of Amsterdam
Utrecht University
assistant
Question:
Which employer did E.G.D. Cohen work for in May, 1979?

Context:
 E.G.D. Cohen works for University of Amsterdam from Sep, 1961 to Sep, 1963. 
 E.G.D. Cohen works for Utrecht University from Apr, 1988 to Aug, 1988. 
 E.G.D. Cohen works for Leiden University from Nov, 1978 to Jun, 1979.

Answer:
user
Leiden University
assistant