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 (", ").

Input: Consider Input: Paragraph- Sent 1: In chapters 3 and 4 we described how the U.S. government adjusted its existing agencies and capacities to address the emerging threat from Usama Bin Ladin and his associates.
Sent 2: After the August 1998 bombings of the American embassies in Kenya and Tanzania, President Bill Clinton and his chief aides explored ways of getting Bin Ladin expelled from Afghanistan or possibly capturing or even killing him.
Sent 3: Although disruption efforts around the world had achieved some successes, the core of Bin Ladin's organization remained intact.
Sent 4: President Clinton was deeply concerned about Bin Ladin.
Sent 5: He and his national security advisor, Samuel "Sandy" Berger, ensured they had a special daily pipeline of reports feeding them the latest updates on Bin Ladin's reported location.
Sent 6: In public, President Clinton spoke repeatedly about the threat of terrorism, referring to terrorist training camps but saying little about Bin Ladin and nothing about al Qaeda.
Sent 7: He explained to us that this was deliberate-intended to avoid enhancing Bin Ladin's stature by giving him unnecessary publicity.
Sent 8: His speeches focused especially on the danger of nonstate actors and of chemical and biological weapons.
Sent 9: As the millennium approached, the most publicized worries were not about terrorism but about computer breakdowns-the Y2K scare.
Sent 10: Some government officials were concerned that terrorists would take advantage of such breakdowns.
Sent 11: On November 30, 1999, Jordanian intelligence intercepted a telephone call between Abu Zubaydah, a longtime ally of Bin Ladin, and Khadr Abu Hoshar, a Palestinian extremist.
Sent 12: Abu Zubaydah said, "The time for training is over."Sent 13: Suspecting that this was a signal for Abu Hoshar to commence a terrorist operation, Jordanian police arrested Abu Hoshar and 15 others and informed Washington.
Sent 14: One of the 16, Raed Hijazi, had been born in California to Palestinian parents; after spending his childhood in the Middle East, he had returned to northern California, taken refuge in extremist Islamist beliefs, and then made his way to Abu Zubaydah's Khaldan camp in Afghanistan, where he learned the fundamentals of guerrilla warfare.
Sent 15: He and his younger brother had been recruited by Abu Hoshar into a loosely knit plot to attack Jewish and American targets in Jordan.
Sent 16: After late 1996, when Abu Hoshar was arrested and jailed, Hijazi moved back to the United States, worked as a cabdriver in Boston, and sent money back to his fellow plotters.
Sent 17: After Abu Hoshar's release, Hijazi shuttled between Boston and Jordan gathering money and supplies.
Sent 18: With Abu Hoshar, he recruited inTurkey and Syria as well as Jordan; with Abu Zubaydah's assistance, Abu Hoshar sent these recruits to Afghanistan for training.
Question: Was President Clinton concerned and what did the U.S Goverment want to be done to Bin Ladin?.

Output: 2, 4.

Input: Consider Input: Paragraph- Sent 1: (CNN) -- Three human heads and three decapitated bodies with notes aimed at high government officials were found Thursday in different parts of Guatemala's capital, national police said.
Sent 2: The notes were addressed to Interior Minister Carlos Menocal and Eddy Morales, the nation's director of prisons.
Sent 3: One of the notes said the officials must impose order in the nation's prisons or these atrocities would continue, police said.
Sent 4: The other said that impunity against lawlessness must end, according to police.
Sent 5: The heads were inside plastic bags, one of them in front of the main doors to the national Congress in Guatemala City, police said.
Sent 6: "That's obviously a first for Guatemala," said Samuel Logan, an expert on Latin American gangs and founding editor of the Southern Pulse intelligence report.
Sent 7: "That's something we've seen the Zetas (drug cartel) do in Mexico."Sent 8: Donald Gonzalez, a spokesman for the national police, attributed the slayings to the Zetas or another narcotrafficking group, the Prensa Libre newspaper reported.
Sent 9: Gonzalez did not immediately return a phone call seeking comment.
Sent 10: Logan did not discount the possibility that anti-crime vigilantes could have been responsible.
Sent 11: "It could also be death squads," he said.
Sent 12: "Off-duty police officers or other types hired by local businessmen who say, 'Go after the street gangs.'Sent 13: "There's a lot of moving parts to this story," said Logan, who recently wrote a book on the Mara Salvatrucha gang of Central America and is working on a book about the Zetas, which has emerged as Mexico's most ruthless drug cartel.
Sent 14: Logan said in an interview last year that there are two main criminal elements in Guatemala: drug cartels that deal in large-scale exportation and street gangs that sell drugs at the retail level and are involved in other crimes, such as robbery and extortion.
Sent 15: In some cases, they work together.
Sent 16: When those criminals get arrested, they continue their activities inside prison, said Fernando Carrera Castro, director of the Central American Institute for Fiscal Studies in Guatemala City.
Question: How did the Interior Minister Carlos Menocal establish a connection between the decapitations and the prison systems.

Output: 2, 3.

Input: Consider Input: Paragraph- Sent 1: You are already very familiar with Earths gravity.
Sent 2: It constantly pulls you toward Earths center.
Sent 3: What might happen if there was no gravity?
Sent 4: You know that the Earth is rotating on its axis.
Sent 5: This motion causes our day and night cycle.
Sent 6: The Earth also orbits the Sun.
Sent 7: All this motion may cause you to fly off the Earth!
Sent 8: You can thank gravity for keeping you in place.
Sent 9: Gravity keeps us firmly down on the ground.
Sent 10: Gravity also pulls on objects that are in the sky.
Sent 11: It also pulls on objects that are in space.
Sent 12: Meteors and skydivers are pulled down by gravity.
Sent 13: Gravity also keeps the moon orbiting the Earth.
Sent 14: Without gravity, the moon would float away.
Sent 15: It also holds artificial satellites in their orbit.
Sent 16: Many of these satellites help to connect the world.
Sent 17: They allow you to pick up a phone a call in many parts of the world.
Sent 18: You can also thank gravity for all your TV channels.
Question: Explain how is it possible to call in many parts of the world?.
Output: 15, 16, 17.