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: One high-profile politician who 's planning his first trip to Iowa in over a decade has a lot of Hawkeye State Democrats buzzing , according to CNN 's Jeff Zeleny .  2: ( Former Vice President Al Gore ) says he 's not running . 3: Al Gore 's trip back to Iowa has some Democrats buzzing .

1: One high-profile politician who 's planning his first trip to Iowa in over a decade 2: Former Vice President Al Gore 3: Al Gore 's