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 (", ").
One example is below.
Q: Paragraph- Sent 1: A Republican bid to keep the government open past Friday includes no new money for the construction of a border wall along the U.S.-Mexico border, according to several congressional aides familiar with ongoing talks.
Sent 2: GOP leaders submitted the new offer Tuesday afternoon in an effort to appease Democrats, whose votes are needed to avert a shutdown of federal agencies, several House and Senate aides said.
Sent 3: However, Republicans also insisted on increases in border security and defense spending, including money to repair existing fencing and new surveillance technology to patrol the nearly 2,000-mile border.
Sent 4: Democrats have indicated that they would support such appropriations so long as no money goes toward an actual wall.
Question: Who has to be appeased to keep the government open?.
A: 1, 2.
Rationale: The question is: Who has to be appeased to keep the government open? The phrase "appease Democrats" is mentioned in Sent 2, about accepting offer that is mentioned in Sent 1 to "keep the government open". So, Sent 1 and Sent 2 are the sentences needed to answer this question.
Q: Paragraph- Sent 1: At 9:34, Ronald Reagan Washington National Airport advised the Secret Service of an unknown aircraft heading in the direction of the White House.
Sent 2: American 77 was then 5 miles west-southwest of the Pentagon and began a 330-degree turn.
Sent 3: At the end of the turn, it was descending through 2,200 feet, pointed toward the Pentagon and downtown Washington.
Sent 4: The hijacker pilot then advanced the throttles to maximum power and dove toward the Pentagon.
Sent 5: At 9:37:46, American Airlines Flight 77 crashed into the Pentagon, traveling at approximately 530 miles per hour.
Sent 6: All on board, as well as many civilian and military personnel in the building, were killed.
Sent 7: The Battle for United 93 At 8:42, United Airlines Flight 93 took off from Newark (New Jersey) Liberty International Airport bound for San Francisco.
Sent 8: The aircraft was piloted by Captain Jason Dahl and First Officer Leroy Homer, and there were five flight attendants.
Sent 9: Thirty-seven passengers, including the hijackers, boarded the plane.
Sent 10: Scheduled to depart the gate at 8:00, the Boeing 757's takeoff was delayed because of the airport's typically heavy morning traffic.
Sent 11: The hijackers had planned to take flights scheduled to depart at 7:45 (American 11), 8:00 (United 175 and United 93), and 8:10 (American 77).
Sent 12: Three of the flights had actually taken off within 10 to 15 minutes of their planned departure times.
Sent 13: United 93 would ordinarily have taken off about 15 minutes after pulling away from the gate.
Sent 14: When it left the ground at 8:42, the flight was running more than 25 minutes late.
Sent 15: As United 93 left Newark, the flight's crew members were unaware of the hijacking of American 11.
Sent 16: Around 9:00, the FAA, American, and United were facing the staggering realization of apparent multiple hijackings.
Sent 17: At 9:03, they would see another aircraft strike the World Trade Center.
Sent 18: Crisis managers at the FAA and the airlines did not yet act to warn other aircraft.
Question: What flights were hijakced on 9/11?.
A:
2, 7, 11.