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: London ( CNN ) Tunisia 's ultra-radical fringe has come back to bite a government born out of the most successful experiment in constitutional reform to emerge from the 2011 Arab Spring revolutions . 2: Jihadist firebrands representing thousands of active militants at home and abroad have been threatening retribution on Tunisia 's outward-looking , investment-friendly majority . 3: Jon Marks : Ultra-radical fringe has previously threatened Tunisia 's liberal majority .

1: Tunisia 's ultra-radical fringe 2: Jihadist firebrands 3: Ultra-radical fringe