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 ) A photography teacher at a Southern California high school appears to have committed suicide by hanging herself in a classroom . 2: Jillian Jacobson , 31 , was found Monday at El Dorado High School , said Lt . Eric Point , with Placentia Police . 3: A photography teacher is found dead at El Dorado High School in Placentia .

1: a Southern California high school 2: El Dorado High School 3: El Dorado High School in Placentia