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: Hadi fled Aden in late March , ultimately for Saudi Arabia , when the rebels and their military allies advanced on the city . 2: He accused Iran of training Yemeni youths to use military aircraft and weapons . 3: Saudi military official accuses Iran of training and arming rebels .

1: rebels 2: Yemeni youths 3: rebels