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: At an arraignment hearing Thursday , Bradley said the 55-year-old now-former dean shot a 17-year-old student he had allegedly hired to sell marijuana . 2: CNN 's multiple attempts to reach an attorney for Harrison were unsuccessful . 3: The student ,17 , was hired to sell marijuana for Harrison , district attorney says .

1: the 55-year-old now-former dean 2: Harrison 3: Harrison