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 there are plenty of apps teens can use to send messages their parents ca n't find later . 2: Snapchat , Cyber Dust , VaporChat and others allow users to send messages that disappear on both the sender and recipient 's phones after a certain period of time . 3: Teens can hide texts they send using apps like Snapchat , CyberDust and VaporChat .

1: send 2: send 3: send