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: With reports that Lubitz apparently ignored those warnings , there are new calls from aviation experts to develop and deploy enhanced crash avoidance software that could take control of an aircraft away from a pilot and steer the plane to a safe altitude . 2: For example , he says , the Federal Aviation Administration rule that two people must always be in the cockpit during a flight might also have saved the Germanwings flight . 3: Autopilot could have taken control of Germanwings flight and flown plane to safe altitude .

1: an aircraft 2: the Germanwings flight 3: Germanwings flight