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*

Example Input: 1: The group said it launched an assault on the Baiji oil refinery late Saturday . 2: By Sunday , ISIS said its fighters were inside the refinery and controlled several buildings , but Iraqi government security officials denied that claim and insisted Iraqi forces remain in full control . 3: ISIS says it controls several buildings at the Baiji oil refinery .
Example Output: 1: The group 2: ISIS 3: ISIS

Example Input: 1: North African cities dominated the top five , with Cairo claiming pole position , followed by Tunis , Johannesburg , Casablanca and Algiers . 2: However , sub-Saharan cities registered among the highest in terms of society and demographics , excelling in diversity and population growth , both useful when looking towards future investment . 3: North African capitals dominate , but there are signs that sub-Saharan cities will come into their own in the near future .
Example Output: 1: cities 2: cities 3: cities

Example Input: 1: ( CNN ) In an audio message purportedly from an ISIS spokesman , the group announced that a pledge of allegiance from Nigerian-based Boko Haram has been accepted by ISIS leader Abu Bakr al-Baghdadi . 2: The message says that the caliphate , or Islamic State , has expanded to western Africa and congratulated  our jihadi brothers  there . 3: Abu Bakr al-Baghdadi 's spokesman congratulated  our jihadi brothers  in western Africa .
Example Output:
1: Nigerian-based Boko Haram 2: our jihadi brothers 3: our jihadi brothers '' in western Africa