Question:
Which employer did Henrietta Harrison work for in May, 1999?

Context:
 Henrietta Harrison works for University of Oxford from Jan, 2012 to Dec, 2022. 
 Henrietta Harrison works for University of Leeds from Jan, 1999 to Jan, 2006. 
 Henrietta Harrison works for Harvard University from Jan, 2006 to Jan, 2012.

Answer:
Question:
Which employer did Henrietta Harrison work for in May, 1999?

Context:
 Henrietta Harrison works for University of Oxford from Jan, 2012 to Dec, 2022. 
 Henrietta Harrison works for University of Leeds from Jan, 1999 to Jan, 2006. 
 Henrietta Harrison works for Harvard University from Jan, 2006 to Jan, 2012.

Answer:
user
University of Leeds
assistant
Question:
Which employer did Henrietta Harrison work for in May, 1999?

Context:
 Henrietta Harrison works for University of Oxford from Jan, 2012 to Dec, 2022. 
 Henrietta Harrison works for University of Leeds from Jan, 1999 to Jan, 2006. 
 Henrietta Harrison works for Harvard University from Jan, 2006 to Jan, 2012.

Answer:
user
University of Oxford
Harvard University
assistant
Question:
Which employer did Henrietta Harrison work for in May, 1999?

Context:
 Henrietta Harrison works for University of Oxford from Jan, 2012 to Dec, 2022. 
 Henrietta Harrison works for University of Leeds from Jan, 1999 to Jan, 2006. 
 Henrietta Harrison works for Harvard University from Jan, 2006 to Jan, 2012.

Answer:
user
University of Leeds
assistant