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: ATL24 : 24 hours in the world 's busiest airport . 2: A spokesman for the Atlanta airport says its carriers are adding more aircraft with higher passenger capacity , which means fewer planes . 3: Hartsfield-Jackson in Atlanta is again the world 's busiest passenger airport .

1: the world 's busiest airport 2: the Atlanta airport 3: Hartsfield-Jackson in Atlanta