Question:
Which employer did Elizabeth A. Fenn work for in May, 2017?

Context:
 Elizabeth A. Fenn works for Duke University from Jan, 2002 to Jan, 2012. 
 Elizabeth A. Fenn works for University of Colorado Boulder from Jan, 2012 to Dec, 2022. 
 Elizabeth A. Fenn works for George Washington University from Jan, 1999 to Jan, 2002.

Answer:
University of Colorado Boulder