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: Prime Minister Ahmet Davutoglu said all possible causes were under investigation , including terrorism . 2: The Turkish Electricity Transmission Co . blamed the outage on a problem with transmission lines , Anadolu Agency reported . 3: Turkish Prime Minister : All possible causes of outage under investigation , including terrorism .

1: all possible causes 2: a problem with transmission lines 3: All possible causes of outage