Definition: You will be given three sentences. Read them, then identify a noun phrase (person, place, or thing) or event that is shared between all three sentences. As the output, write the span of the text corresponding to that phrase in each sentence. Keep the order of the sentences, that is, your answer should look like: 1: *a phras from sentence 1e* 2: *a phras from sentence 2* 3: *a phrase from sentence 3*
Input: 1: Grass focused in much of his work on learning from the horror of war and genocide by exploring motifs from his childhood city of Danzig , which is now Gdansk , Poland . 2: During the Nazi era , ethnic Poles and Jews were persecuted and deported from the multicultural city , at a time when they faced the possibility of mass murder . 3: Grass tried in his literature to come to grips with World War II and the Nazi era .

1: the horror of war and genocide 2: the Nazi era 3: World War II and the Nazi era