Question:
Who was the chair of Massachusetts Institute of Technology in Feb, 2012?

Context:
 Charles Marstiller Vest is the chair of Massachusetts Institute of Technology from Oct, 1990 to Dec, 2004. 
 Jerome Wiesner is the chair of Massachusetts Institute of Technology from Jul, 1971 to Jun, 1980. 
 Susan Hockfield is the chair of Massachusetts Institute of Technology from Dec, 2004 to Jul, 2012. 
 Cynthia Barnhart is the chair of Massachusetts Institute of Technology from Jan, 2014 to Dec, 2022. 
 Howard Wesley Johnson is the chair of Massachusetts Institute of Technology from Jul, 1966 to Jun, 1971. 
 Paul E. Gray is the chair of Massachusetts Institute of Technology from Jul, 1980 to Oct, 1990. 
 Eric Grimson is the chair of Massachusetts Institute of Technology from Jan, 2011 to Jan, 2014. 
 L. Rafael Reif is the chair of Massachusetts Institute of Technology from Jan, 2012 to Dec, 2022.

Answer:
Question:
Who was the chair of Massachusetts Institute of Technology in Feb, 2012?

Context:
 Charles Marstiller Vest is the chair of Massachusetts Institute of Technology from Oct, 1990 to Dec, 2004. 
 Jerome Wiesner is the chair of Massachusetts Institute of Technology from Jul, 1971 to Jun, 1980. 
 Susan Hockfield is the chair of Massachusetts Institute of Technology from Dec, 2004 to Jul, 2012. 
 Cynthia Barnhart is the chair of Massachusetts Institute of Technology from Jan, 2014 to Dec, 2022. 
 Howard Wesley Johnson is the chair of Massachusetts Institute of Technology from Jul, 1966 to Jun, 1971. 
 Paul E. Gray is the chair of Massachusetts Institute of Technology from Jul, 1980 to Oct, 1990. 
 Eric Grimson is the chair of Massachusetts Institute of Technology from Jan, 2011 to Jan, 2014. 
 L. Rafael Reif is the chair of Massachusetts Institute of Technology from Jan, 2012 to Dec, 2022.

Answer:
user
Eric Grimson
assistant
Question:
Who was the chair of Massachusetts Institute of Technology in Feb, 2012?

Context:
 Charles Marstiller Vest is the chair of Massachusetts Institute of Technology from Oct, 1990 to Dec, 2004. 
 Jerome Wiesner is the chair of Massachusetts Institute of Technology from Jul, 1971 to Jun, 1980. 
 Susan Hockfield is the chair of Massachusetts Institute of Technology from Dec, 2004 to Jul, 2012. 
 Cynthia Barnhart is the chair of Massachusetts Institute of Technology from Jan, 2014 to Dec, 2022. 
 Howard Wesley Johnson is the chair of Massachusetts Institute of Technology from Jul, 1966 to Jun, 1971. 
 Paul E. Gray is the chair of Massachusetts Institute of Technology from Jul, 1980 to Oct, 1990. 
 Eric Grimson is the chair of Massachusetts Institute of Technology from Jan, 2011 to Jan, 2014. 
 L. Rafael Reif is the chair of Massachusetts Institute of Technology from Jan, 2012 to Dec, 2022.

Answer:
user
Howard Wesley Johnson
Paul E. Gray
Jerome Wiesner
Charles Marstiller Vest
Cynthia Barnhart
assistant
Question:
Who was the chair of Massachusetts Institute of Technology in Feb, 2012?

Context:
 Charles Marstiller Vest is the chair of Massachusetts Institute of Technology from Oct, 1990 to Dec, 2004. 
 Jerome Wiesner is the chair of Massachusetts Institute of Technology from Jul, 1971 to Jun, 1980. 
 Susan Hockfield is the chair of Massachusetts Institute of Technology from Dec, 2004 to Jul, 2012. 
 Cynthia Barnhart is the chair of Massachusetts Institute of Technology from Jan, 2014 to Dec, 2022. 
 Howard Wesley Johnson is the chair of Massachusetts Institute of Technology from Jul, 1966 to Jun, 1971. 
 Paul E. Gray is the chair of Massachusetts Institute of Technology from Jul, 1980 to Oct, 1990. 
 Eric Grimson is the chair of Massachusetts Institute of Technology from Jan, 2011 to Jan, 2014. 
 L. Rafael Reif is the chair of Massachusetts Institute of Technology from Jan, 2012 to Dec, 2022.

Answer:
user
Eric Grimson
assistant