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: Hurlburt Field, Florida (CNN) -- An Air Force CV-22 Osprey crashed Wednesday during a routine training mission north of Navarre, Florida, injuring five crew members aboard, a military official said.
Sent 2: The crash occurred about 6:45 p.m.
Sent 3: at Hurlburt Field's Eglin Range, said Amy Nicholson, chief of public affairs at the airfield.
Sent 4: The five injured crew members were taken to an area hospital, Nicholson said.
Sent 5: The extent of their injuries was not immediately known.
Sent 6: The cause of the accident is under investigation, she said.
Sent 7: The Osprey was assigned to the 1st Special Operations Wing, the Air Force said.
Sent 8: The tilt-rotor aircraft can fly like an airplane and land like a helicopter.
Sent 9: The Army began developing the Osprey in 1982, though the program was nearly scrapped in 1989 when then-Secretary of Defense Dick Cheney sought to cancel it because of ballooning costs.
Sent 10: Questions were raised about the safety of the Osprey after two crashes, including one in 1992 at a Marine Corps air base in Virginia that killed the crew.
Sent 11: In late 2000, the Marine Corps grounded the Osprey fleet after two crashes -- one in Arizona that killed four crew members and 15 passengers, and another in North Carolina that killed the crew.
Sent 12: A redesign was ordered on the Osprey, and it resumed flights in 2002.
Sent 13: The Air Force began using Ospreys in 2008 after testing the aircraft in 2006.
Sent 14: They were first deployed by the Marines in Iraq in 2007 after 18 years and $20 billion in development.
Question: What reasons might have caused the Osprey to be scrapped?.
[EX A]: 9, 10, 11.

[EX Q]: Paragraph- Sent 1: "What goes up must come down."Sent 2: You have probably heard that statement before.
Sent 3: At one time this statement was true, but no longer.
Sent 4: Since the 1960s, we have sent many spacecraft into space.
Sent 5: Some are still traveling away from Earth.
Sent 6: So it is possible to overcome gravity.
Sent 7: Do you need a giant rocket to overcome gravity?
Sent 8: No, you actually overcome gravity every day.
Sent 9: Think about when you climb a set of stairs.
Sent 10: When you do, you are overcoming gravity.
Sent 11: What if you jump on a trampoline?
Sent 12: You are overcoming gravity for a few seconds.
Sent 13: Everyone can overcome gravity.
Sent 14: You just need to apply a force larger than gravity.
Sent 15: Think about that the next time you jump into the air.
Sent 16: You are overcoming gravity for a brief second.
Sent 17: Enjoy it while it lasts.
Sent 18: Eventually, gravity will win the battle.
Question: Is the statement "what comes up must go down" no longer true?.
[EX A]: 1, 3.

[EX Q]: Paragraph- Sent 1: Arthur Weldon had not been very enthusiastic about the paper at any time, although he humored the girls by attending in a good-natured way to the advertising, hiring some of the country folk to get subscriptions, and keeping the books.
Sent 2: He was a young man of considerable education who had inherited a large fortune, safely invested, and therefore had no need, through financial necessity, to interest himself in business of any sort.
Sent 3: He allowed the girls to print his name as editor in chief, but he did no editorial work at all, amusing himself these delightful summer days by wandering in the woods, where he collected botanical specimens, or sitting with Uncle John on the lawn, where they read together or played chess.
Sent 4: Both the men were glad the girls were happy in their work and enthusiastic over the success of their audacious venture.
Sent 5: Beth was developing decided talent as a writer of editorials and her articles were even more thoughtful and dignified than were those of Patsy.
Sent 6: The two girls found plenty to occupy them at the office, while Louise did the reportorial work and flitted through Millville and down to Huntingdon each day in search of small items of local interest.
Sent 7: She grew fond of this work, for it brought her close to the people and enabled her to study their characters and peculiarities.
Sent 8: Her manner of approaching the simple country folk was so gracious and winning that they freely gave her any information they possessed, and chatted with her unreservedly.
Question: Which men were glad the girls were happy?.
[EX A]:
1, 3, 4.