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 ) The national office of Sigma Alpha Epsilon fraternity changed its tune . 2: The OU chapter , SAE said ,  likely learned a racist chant while attending a national leadership school about four years ago .  3: Sigma Alpha Epsilon 's national office issues a statement about racist chant .

1: The national office of Sigma Alpha Epsilon fraternity 2: SAE 3: Sigma Alpha Epsilon 's national office