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 ) Dan Swangard knows what death looks like . 2: And if he gets to a point where there 's nothing more medicine can do , he wants to be able to control when and how his life ends . 3: Dan Swangard , a physician , wants to be able to control when and how his life ends .

1: Dan Swangard 2: he 3: Dan Swangard , a physician