You are given a paragraph, with numbered sentences, and a question. Write the numbers of the sentences needed to answer the given question. Separate multiple sentence numbers with a comma (", "). E.g. "1, 2" would be the correct response if Sent 1 and Sent 2 are needed to answer the given question (do not include sentences that contain no information that is necessary to answer the question). Sort the sentence numbers in an increasing order (i.e., '1, 2', instead of '2, 1'). Your answer should not contain anything than the sentence numbers separated by a comma (e.g. '1, 2, 3, 4'). The given question requires more than one sentence to answer. So, your answer must contain at least one comma (", ").

[EX Q]: Paragraph- Sent 1: Right after the Pentagon was hit, NEADS learned of another possible hijacked aircraft.
Sent 2: It was an aircraft that in fact had not been hijacked at all.
Sent 3: After the second World Trade Center crash, Boston Center managers recognized that both aircraft were transcontinental 767 jetliners that had departed Logan Airport.
Sent 4: Remembering the "we have some planes" remark, Boston Center guessed that Delta 1989 might also be hijacked.
Sent 5: Boston Center called NEADS at 9:41 and identified Delta 1989, a 767 jet that had left Logan Airport for Las Vegas, as a possible hijack.
Sent 6: NEADS warned the FAA's Cleveland Center to watch Delta 1989.
Sent 7: The Command Center and FAA headquarters watched it too.
Sent 8: During the course of the morning, there were multiple erroneous reports of hijacked aircraft.
Sent 9: The report of American 11 heading south was the first; Delta 1989 was the second.
Sent 10: NEADS never lost track of Delta 1989, and even ordered fighter aircraft from Ohio and Michigan to intercept it.
Sent 11: The flight never turned off its transponder.
Sent 12: NEADS soon learned that the aircraft was not hijacked, and tracked Delta 1989 as it reversed course over Toledo, headed east, and landed in Cleveland.
Sent 13: But another aircraft was heading toward Washington, an aircraft about which NORAD had heard nothing: United 93.
Sent 14: United Airlines Flight 93 FAA Awareness.
Sent 15: At 9:27, after having been in the air for 45 minutes, United 93 acknowledged a transmission from the Cleveland Center controller.
Sent 16: This was the last normal contact the FAA had with the flight.
Sent 17: Less than a minute later, the Cleveland controller and the pilots of aircraft in the vicinity heard "a radio transmission of unintelligible sounds of possible screaming or a struggle from an unknown origin."Sent 18: The controller responded, seconds later: "Somebody call Cleveland?"This was followed by a second radio transmission, with sounds of screaming.
Question: Which air traffic center communicated with United 93?.
[EX A]: 14, 15.

[EX Q]: Paragraph- Sent 1: Spring 1944 .
Sent 2: Nazi officers want to organize a football match for Hitler 's birthday , in which Germans would play against Hungarian prisoners of war .
Sent 3: They call for the famous Hungarian footballer , n di , and order him to organize a team .
Sent 4: n di accepts , but in turn demands extra food , a ball with which he and his team can train before the match , and asks that they be allowed to concentrate on training before the match and not work .
Sent 5: The Germans accept all the demands , but recommend n di not include any Jews in his team .
Sent 6: However , n di ca n't organize the team only from his company , because only 8 out of 98 soldiers can play football .
Sent 7: Therefore n di recruits players from the other company .
Sent 8: One of the players is Steiner , who is a Jew and ca n't play football .
Sent 9: He lied to n di because he was afraid to die .
Sent 10: During training the footballers subdue the German corporal guarding them and try to escape .
Sent 11: They are soon recaptured and told they will now face probable death penalty .
Sent 12: However , the Germans order the Hungarian team to still play the match .
Sent 13: At the beginning of the match n di and his team are discouraged , as the Germans easily score three goals .
Sent 14: The Hungarians succeed in scoring one goal and the first half ends 3-1 in favor of Germany .
Sent 15: At the interval the German commander tells the Hungarians that they might not be executed if they lose the match .
Sent 16: The Hungarians refuse to believe this .
Sent 17: At the beginning of the second half they score three goals .
Sent 18: As a result , during the match , they are executed by the Germans .
Question: Who was the Hungarian prisoner that the Germans approached for the football match?.
[EX A]: 3, 4, 6, 7, 8.

[EX Q]: Paragraph- Sent 1: American Airlines Flight 11: FAA Awareness.
Sent 2: Although the Boston Center air traffic controller realized at an early stage that there was something wrong with American 11, he did not immediately interpret the plane's failure to respond as a sign that it had been hijacked.
Sent 3: At 8:14, when the flight failed to heed his instruction to climb to 35,000 feet, the controller repeatedly tried to raise the flight.
Sent 4: He reached out to the pilot on the emergency frequency.
Sent 5: Though there was no response, he kept trying to contact the aircraft.
Sent 6: At 8:21, American 11 turned off its transponder, immediately degrading the information available about the aircraft.
Sent 7: The controller told his supervisor that he thought something was seriously wrong with the plane, although neither suspected a hijacking.
Sent 8: The supervisor instructed the controller to follow standard procedures for handling a "no radio" aircraft.
Sent 9: The controller checked to see if American Airlines could establish communication with American 11.
Sent 10: He became even more concerned as its route changed, moving into another sector's airspace.
Sent 11: Controllers immediately began to move aircraft out of its path, and asked other aircraft in the vicinity to look for American 11.
Sent 12: At 8:24:38, the following transmission came from American 11: American 11: We have some planes.
Sent 13: Just stay quiet, and you'll be okay.
Sent 14: We are returning to the airport.
Sent 15: The controller only heard something unintelligible; he did not hear the specific words "we have some planes."Sent 16: The next transmission came seconds later: American 11: Nobody move.
Sent 17: Everything will be okay.
Sent 18: If you try to make any moves, you'll endanger yourself and the airplane.
Question: What circumstances prompted tower control to contact American Airlines Flight 11? How was the pilot contacted?.
[EX A]:
3, 4, 5.