Question:
Who was the chair of Center for Advanced Visual Studies in Dec, 1967?

Context:
 Stephen Benton is the chair of Center for Advanced Visual Studies from Jan, 1996 to Jan, 2003. 
 Otto Piene is the chair of Center for Advanced Visual Studies from Jan, 1974 to Jan, 1994. 
 György Kepes is the chair of Center for Advanced Visual Studies from Jan, 1967 to Jan, 1974. 
 Krzysztof Wodiczko is the chair of Center for Advanced Visual Studies from Jan, 2004 to Jan, 2009.

Answer:
Question:
Who was the chair of Center for Advanced Visual Studies in Dec, 1967?

Context:
 Stephen Benton is the chair of Center for Advanced Visual Studies from Jan, 1996 to Jan, 2003. 
 Otto Piene is the chair of Center for Advanced Visual Studies from Jan, 1974 to Jan, 1994. 
 György Kepes is the chair of Center for Advanced Visual Studies from Jan, 1967 to Jan, 1974. 
 Krzysztof Wodiczko is the chair of Center for Advanced Visual Studies from Jan, 2004 to Jan, 2009.

Answer:
user
György Kepes
assistant
Question:
Who was the chair of Center for Advanced Visual Studies in Dec, 1967?

Context:
 Stephen Benton is the chair of Center for Advanced Visual Studies from Jan, 1996 to Jan, 2003. 
 Otto Piene is the chair of Center for Advanced Visual Studies from Jan, 1974 to Jan, 1994. 
 György Kepes is the chair of Center for Advanced Visual Studies from Jan, 1967 to Jan, 1974. 
 Krzysztof Wodiczko is the chair of Center for Advanced Visual Studies from Jan, 2004 to Jan, 2009.

Answer:
user
Stephen Benton
Otto Piene
Krzysztof Wodiczko
assistant
Question:
Who was the chair of Center for Advanced Visual Studies in Dec, 1967?

Context:
 Stephen Benton is the chair of Center for Advanced Visual Studies from Jan, 1996 to Jan, 2003. 
 Otto Piene is the chair of Center for Advanced Visual Studies from Jan, 1974 to Jan, 1994. 
 György Kepes is the chair of Center for Advanced Visual Studies from Jan, 1967 to Jan, 1974. 
 Krzysztof Wodiczko is the chair of Center for Advanced Visual Studies from Jan, 2004 to Jan, 2009.

Answer:
user
György Kepes
assistant