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 group said it launched an assault on the Baiji oil refinery late Saturday . 2: By Sunday , ISIS said its fighters were inside the refinery and controlled several buildings , but Iraqi government security officials denied that claim and insisted Iraqi forces remain in full control . 3: ISIS says it controls several buildings at the Baiji oil refinery .

1: the Baiji oil refinery 2: the refinery 3: the Baiji oil refinery