Question:
Which employer did Sagiri Kitao work for in Dec, 2007?

Context:
 Sagiri Kitao works for University of Southern California from Aug, 2007 to May, 2009. 
 Sagiri Kitao works for City University of New York from Aug, 2011 to Aug, 2015. 
 Sagiri Kitao works for University of Tokyo from Apr, 2018 to Dec, 2022. 
 Sagiri Kitao works for Federal Reserve Bank of New York from Sep, 2009 to Aug, 2011. 
 Sagiri Kitao works for Keio University from Jan, 2015 to Mar, 2018. 
 Sagiri Kitao works for Goldman Sachs from Apr, 1996 to Jul, 1999.

Answer:
Question:
Which employer did Sagiri Kitao work for in Dec, 2007?

Context:
 Sagiri Kitao works for University of Southern California from Aug, 2007 to May, 2009. 
 Sagiri Kitao works for City University of New York from Aug, 2011 to Aug, 2015. 
 Sagiri Kitao works for University of Tokyo from Apr, 2018 to Dec, 2022. 
 Sagiri Kitao works for Federal Reserve Bank of New York from Sep, 2009 to Aug, 2011. 
 Sagiri Kitao works for Keio University from Jan, 2015 to Mar, 2018. 
 Sagiri Kitao works for Goldman Sachs from Apr, 1996 to Jul, 1999.

Answer:
user
University of Southern California
assistant
Question:
Which employer did Sagiri Kitao work for in Dec, 2007?

Context:
 Sagiri Kitao works for University of Southern California from Aug, 2007 to May, 2009. 
 Sagiri Kitao works for City University of New York from Aug, 2011 to Aug, 2015. 
 Sagiri Kitao works for University of Tokyo from Apr, 2018 to Dec, 2022. 
 Sagiri Kitao works for Federal Reserve Bank of New York from Sep, 2009 to Aug, 2011. 
 Sagiri Kitao works for Keio University from Jan, 2015 to Mar, 2018. 
 Sagiri Kitao works for Goldman Sachs from Apr, 1996 to Jul, 1999.

Answer:
user
Federal Reserve Bank of New York
Keio University
University of Tokyo
City University of New York
Goldman Sachs
assistant
Question:
Which employer did Sagiri Kitao work for in Dec, 2007?

Context:
 Sagiri Kitao works for University of Southern California from Aug, 2007 to May, 2009. 
 Sagiri Kitao works for City University of New York from Aug, 2011 to Aug, 2015. 
 Sagiri Kitao works for University of Tokyo from Apr, 2018 to Dec, 2022. 
 Sagiri Kitao works for Federal Reserve Bank of New York from Sep, 2009 to Aug, 2011. 
 Sagiri Kitao works for Keio University from Jan, 2015 to Mar, 2018. 
 Sagiri Kitao works for Goldman Sachs from Apr, 1996 to Jul, 1999.

Answer:
user
University of Southern California
assistant