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 his mother is convinced he 's coming back . 2:  I think psychologically it is understandable , they choose to believe that their loved ones are still missing , so they can still have hope for them to return ,  says May Lam , a psychiatrist at The University of Hong Kong . 3: Chinese mother of son on missing plane still believes he will come home .

1: convinced 2: believe 3: believes