Question:
Which employer did Norman Steenrod work for in Dec, 1952?

Context:
 Norman Steenrod works for Princeton University from Jan, 1947 to Jan, 1971. 
 Norman Steenrod works for University of Michigan from Jan, 1942 to Jan, 1947. 
 Norman Steenrod works for University of Chicago from Jan, 1939 to Jan, 1942.

Answer:
Question:
Which employer did Norman Steenrod work for in Dec, 1952?

Context:
 Norman Steenrod works for Princeton University from Jan, 1947 to Jan, 1971. 
 Norman Steenrod works for University of Michigan from Jan, 1942 to Jan, 1947. 
 Norman Steenrod works for University of Chicago from Jan, 1939 to Jan, 1942.

Answer:
user
Princeton University
assistant
Question:
Which employer did Norman Steenrod work for in Dec, 1952?

Context:
 Norman Steenrod works for Princeton University from Jan, 1947 to Jan, 1971. 
 Norman Steenrod works for University of Michigan from Jan, 1942 to Jan, 1947. 
 Norman Steenrod works for University of Chicago from Jan, 1939 to Jan, 1942.

Answer:
user
University of Michigan
University of Chicago
assistant
Question:
Which employer did Norman Steenrod work for in Dec, 1952?

Context:
 Norman Steenrod works for Princeton University from Jan, 1947 to Jan, 1971. 
 Norman Steenrod works for University of Michigan from Jan, 1942 to Jan, 1947. 
 Norman Steenrod works for University of Chicago from Jan, 1939 to Jan, 1942.

Answer:
user
Princeton University
assistant