Question:
Which employer did Gustav Ludwig Hertz work for in Aug, 1919?

Context:
 Gustav Ludwig Hertz works for Humboldt University of Berlin from Jan, 1913 to Jan, 1920. 
 Gustav Ludwig Hertz works for Technical University of Berlin from Jan, 1928 to Jan, 1935. 
 Gustav Ludwig Hertz works for Koninklijke Philips NV from Jan, 1920 to Jan, 1925. 
 Gustav Ludwig Hertz works for Siemens from Jan, 1935 to Jan, 1945. 
 Gustav Ludwig Hertz works for Leipzig University from Jan, 1954 to Jan, 1961. 
 Gustav Ludwig Hertz works for University of Halle-Wittenberg from Jan, 1925 to Jan, 1928.

Answer:
Question:
Which employer did Gustav Ludwig Hertz work for in Aug, 1919?

Context:
 Gustav Ludwig Hertz works for Humboldt University of Berlin from Jan, 1913 to Jan, 1920. 
 Gustav Ludwig Hertz works for Technical University of Berlin from Jan, 1928 to Jan, 1935. 
 Gustav Ludwig Hertz works for Koninklijke Philips NV from Jan, 1920 to Jan, 1925. 
 Gustav Ludwig Hertz works for Siemens from Jan, 1935 to Jan, 1945. 
 Gustav Ludwig Hertz works for Leipzig University from Jan, 1954 to Jan, 1961. 
 Gustav Ludwig Hertz works for University of Halle-Wittenberg from Jan, 1925 to Jan, 1928.

Answer:
user
Humboldt University of Berlin
assistant
Question:
Which employer did Gustav Ludwig Hertz work for in Aug, 1919?

Context:
 Gustav Ludwig Hertz works for Humboldt University of Berlin from Jan, 1913 to Jan, 1920. 
 Gustav Ludwig Hertz works for Technical University of Berlin from Jan, 1928 to Jan, 1935. 
 Gustav Ludwig Hertz works for Koninklijke Philips NV from Jan, 1920 to Jan, 1925. 
 Gustav Ludwig Hertz works for Siemens from Jan, 1935 to Jan, 1945. 
 Gustav Ludwig Hertz works for Leipzig University from Jan, 1954 to Jan, 1961. 
 Gustav Ludwig Hertz works for University of Halle-Wittenberg from Jan, 1925 to Jan, 1928.

Answer:
user
Siemens
Technical University of Berlin
University of Halle-Wittenberg
Leipzig University
Koninklijke Philips NV
assistant
Question:
Which employer did Gustav Ludwig Hertz work for in Aug, 1919?

Context:
 Gustav Ludwig Hertz works for Humboldt University of Berlin from Jan, 1913 to Jan, 1920. 
 Gustav Ludwig Hertz works for Technical University of Berlin from Jan, 1928 to Jan, 1935. 
 Gustav Ludwig Hertz works for Koninklijke Philips NV from Jan, 1920 to Jan, 1925. 
 Gustav Ludwig Hertz works for Siemens from Jan, 1935 to Jan, 1945. 
 Gustav Ludwig Hertz works for Leipzig University from Jan, 1954 to Jan, 1961. 
 Gustav Ludwig Hertz works for University of Halle-Wittenberg from Jan, 1925 to Jan, 1928.

Answer:
user
Humboldt University of Berlin
assistant