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*

1: However , it is encouraging that both Shia and Sunni fighters are supporting the army in its effort to defeat ISIS . 2: Politically , these groups may not see eye-to-eye and of course there remain deep ethno-sectarian tensions in Iraq and beyond , but regardless of these differences they all view ISIS as a common threat and enemy that must be defeated . 3: Both Shia and Sunni groups view ISIS as a common threat and enemy that must be defeated , he adds .
1: both Shia and Sunni fighters 2: these groups 3: Both Shia and Sunni groups

1: He was killed in a chase and gunbattle with police that began with reports of an  officer down  at MIT . 2:  I'm serious ,  Meng testified that the man told him moments before admitting to being the Boston Marathon bomber . 3: Dun Meng says one of carjackers admitted to being a bomber and to killing an MIT officer .
1: He 2: the man 3: one of carjackers

1: ( CNN )  Fraggle Rock ,  the long-in-the-works adaptation of the Jim Henson 1980s puppet TV show , is getting a shot in the arm with the help of Joseph Gordon-Levitt . 2: The actor has come aboard to star in and produce the feature adaptation . 3: Actor Joseph Gordon-Levitt has signed on to star in and produce a ` Fraggle Rock ' movie .

1: Joseph Gordon-Levitt 2: The actor 3: Actor Joseph Gordon-Levitt