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 ) Two years ago , the storied Boston Marathon ended in terror and altered the lives of runners , spectators and those who tried to come to their rescue . 2: They wore white , blue and yellow pins celebrating  One Boston Day ,  which was created to recognize acts of valor and to encourage kindness among Bostonians . 3: Citizens gather to honor victims on One Boston Day , two years after the marathon bombings .

1: Boston 2: Boston 3: Boston