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: The email sent to Columbia 's faculty dean for Health Sciences and Medicine , Dr . Lee Goldman , said the group is  surprised and dismayed  that Oz is on faculty and that he holds a senior administrative position . 2: Oz is vice chair of the Department of Surgery , at Columbia University College of Physicians and Surgeons . 3: TV 's  Dr. Oz  holds a faculty position at Columbia University 's College of Physicians and Surgeons .

1: Oz 2: Oz 3: TV 's `` Dr. Oz