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: This would mark Kim 's first official foreign trip since inheriting the leadership in late 2011 . 2: North Korea accepted the invitation . 3: This would be Kim Jong Un 's first official foreign trip as North Korea 's leader .

1: Kim 2: North Korea 3: Kim Jong Un