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: A stranger in town meets pretty young Susan Martinez De La Cruz and accompanies her to a barbecue , where wealthy Jason Carberry is saying a few words for the recently departed Robin Randall , a citizen who got shot .
Sent 2: Jason objects to the stranger 's presence , being Susan 's guardian and protective of her .
Sent 3: He challenges him to a shootout , but the stranger pulls his pistol before Jason 's can even clear the holster .
Sent 4: Calaveras Kate , a saloon singer who 's in love with Jason , is relieved when the stranger declines to pull the trigger .
Sent 5: Rafael Moreno suddenly rides into town and picks a fight with the stranger .
Sent 6: Their brawl continues until the arrival of Judge Wallace Wintrop and his niece , Sheila , who have come to town from back East and deplore all this random violence out West .
Sent 7: The stranger is recognized as Reb Randall , the dead man 's brother .
Sent 8: He is looking for the killer , who could be Rafael , or could be Jason , or could even be Billy Buckett , the coward of the county .
Sent 9: The women hold their breath to see if the men they love will survive .
Question: Why was there a brawl and who ended up breaking up the brawl?.
[EX A]: 2, 4, 5, 6.

[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: What are two common examples of how we overcome gravity?.
[EX A]: 8, 9, 10, 11, 12.

[EX Q]: Paragraph- Sent 1: Tuesday, September 11, 2001, dawned temperate and nearly cloudless in the eastern United States.
Sent 2: Millions of men and women readied themselves for work.
Sent 3: Some made their way to the Twin Towers, the signature structures of the World Trade Center complex in New York City.
Sent 4: Others went to Arlington, Virginia, to the Pentagon.
Sent 5: Across the Potomac River, the United States Congress was back in session.
Sent 6: At the other end of Pennsylvania Avenue, people began to line up for a White House tour.
Sent 7: In Sarasota, Florida, President George W. Bush went for an early morning run.
Sent 8: For those heading to an airport, weather conditions could not have been better for a safe and pleasant journey.
Sent 9: Among the travelers were Mohamed Atta and Abdul Aziz al Omari, who arrived at the airport in Portland, Maine.
Sent 10: Boston: American 11 and United 175.
Sent 11: Atta and Omari boarded a 6:00 A.M. flight from Portland to Boston's Logan International Airport.
Sent 12: When he checked in for his flight to Boston, Atta was selected by a computerized prescreening system known as CAPPS (Computer Assisted Passenger Prescreening System), created to identify passengers who should be subject to special security measures.
Sent 13: Under security rules in place at the time, the only consequence of Atta's selection by CAPPS was that his checked bags were held off the plane until it was confirmed that he had boarded the aircraft.
Sent 14: This did not hinder Atta's plans.
Sent 15: Atta and Omari arrived in Boston at 6:45.
Sent 16: Seven minutes later, Atta apparently took a call from Marwan al Shehhi, a longtime colleague who was at another terminal at Logan Airport.
Sent 17: They spoke for three minutes.
Sent 18: It would be their final conversation.
Question: What were the security rules for CAPPS prescreening system on September 11, 2001?.
[EX A]:
1, 12, 13.