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: But even though Hillary Clinton has been around nearly my entire lifetime , The Economist may speak for many when it asks :  What does Hillary stand for ?  2: There are good grounds for a liberal primary challenge to Clinton . 3: Timothy Stanley : Hillary Clinton running for president , but it 's not clear what she stands for . There are grounds for a liberal primary challenge .

1: Hillary Clinton 2: Clinton 3: Hillary Clinton