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: Another hiker , Carsten Lillelund Pedersen , wrote on Facebook that  a huge avalanche swept over basecamp  that had almost 500 tents , saying he survived by hiding behind a stone structure . 2: Afterward , the camp 's dining tent was transformed into a makeshift hospital headed by the camp manager , who happens to be a doctor . 3: Dining tent at one base camp has been transformed into a hospital , another hiker says .

1: basecamp 2: the camp 3: one base camp