Question:
Who was the owner of Interchange in May, 1958?

Context:
 Interchange is owned by Kenneth C. Griffin from Jan, 2015 to Dec, 2022. 
 Interchange is owned by David Geffen from Jan, 1990 to Jan, 2015. 
 Interchange is owned by Edgar Kaufmann, Jr. from Jan, 1956 to Jan, 1989.

Answer:
Question:
Who was the owner of Interchange in May, 1958?

Context:
 Interchange is owned by Kenneth C. Griffin from Jan, 2015 to Dec, 2022. 
 Interchange is owned by David Geffen from Jan, 1990 to Jan, 2015. 
 Interchange is owned by Edgar Kaufmann, Jr. from Jan, 1956 to Jan, 1989.

Answer:
user
Edgar Kaufmann, Jr.
assistant
Question:
Who was the owner of Interchange in May, 1958?

Context:
 Interchange is owned by Kenneth C. Griffin from Jan, 2015 to Dec, 2022. 
 Interchange is owned by David Geffen from Jan, 1990 to Jan, 2015. 
 Interchange is owned by Edgar Kaufmann, Jr. from Jan, 1956 to Jan, 1989.

Answer:
user
David Geffen
Kenneth C. Griffin
assistant
Question:
Who was the owner of Interchange in May, 1958?

Context:
 Interchange is owned by Kenneth C. Griffin from Jan, 2015 to Dec, 2022. 
 Interchange is owned by David Geffen from Jan, 1990 to Jan, 2015. 
 Interchange is owned by Edgar Kaufmann, Jr. from Jan, 1956 to Jan, 1989.

Answer:
user
Edgar Kaufmann, Jr.
assistant