Complex sentence: These prints were published in 1920 in the magazine Dadaphone by Tristan Tzara, who called these images'Schadographs' to express a Dadaist desire to create art from discarded objects.
Split into simpler sentences: These prints were published in 1920 in the magazine Dadaphone by Tristan Tzara. It was Tristan Tzara who called these images Schadographs to express a Dadist desire to create art from discarded objects.