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: The spacewalk lasted five hours and 38 minutes , NASA said . 2:  Crews have now spent a total of 1,171 hours and 29 minutes conducting space station assembly and maintenance during 187 spacewalks ,  the agency said in a release . 3: Spacewalk last more than five hours ; crews have spent more than 1,171 hours spacewalking .

1: hours 2: hours 3: hours