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: ( CNN ) Yemeni officials said Saudi airstrikes targeting a military base on Tuesday hit a nearby school , injuring at least a half dozen students . 2: A third source , with the Education Ministry in Ibb , said three students had been killed at the Al Bastain School in Maitam , in southwestern Yemen , as a result of an airstrike . 3: Yemeni officials say school hit by airstrikes ; one source says three students killed .

1: Saudi airstrikes 2: an airstrike 3: airstrikes