Information:  - Christian Schad ( August 21 , 1894 -- February 25 , 1982 ) was a German painter associated with Dada and the New Objectivity movement . Considered as a group , Schad 's portraits form an extraordinary record of life in Vienna and Berlin in the years following World War I.  - George Grosz (July 26, 1893  July 6, 1959) was a German artist known especially for his caricatural drawings and paintings of Berlin life in the 1920s. He was a prominent member of the Berlin Dada and New Objectivity group during the Weimar Republic. He emigrated to the United States in 1933, and became a naturalized citizen in 1938. Abandoning the style and subject matter of his earlier work, he exhibited regularly and taught for many years at the Art Students League of New York. In 1956 he returned to Berlin where he died.  - The New Objectivity (in ) was a movement in German art that arose during the 1920s as a reaction against expressionism. The term was coined by Gustav Friedrich Hartlaub, the director of the in Mannheim, who used it as the title of an art exhibition staged in 1925 to showcase artists who were working in a post-expressionist spirit.  As these artistswho included Max Beckmann, Otto Dix, and George Groszrejected the self-involvement and romantic longings of the expressionists, Weimar intellectuals in general made a call to arms for public collaboration, engagement, and rejection of romantic idealism.  - Max Beckmann (February 12, 1884  December 27, 1950) was a German painter, draftsman, printmaker, sculptor, and writer. Although he is classified as an Expressionist artist, he rejected both the term and the movement. In the 1920s, he was associated with the New Objectivity ("Neue Sachlichkeit"), an outgrowth of Expressionism that opposed its introverted emotionalism.    What is the relationship between 'christian schad' and 'expressionism'?
The answer to this question is:
movement