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: For 30 years , he spent most of his time locked in a 5-by-7 cell . 2: What got him through all those tough times , he said , was his sense of humor . 3: He says his sense of humor helped him survive 30 years in prison .

1: his time locked in a 5-by-7 cell 2: those tough times 3: 30 years in prison