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: (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: The Romans: Legend says Rome was founded by Romulus, sired with twin brother Remus by Mars of a Vestal Virgin and abandoned on the Palatine Hill to be suckled by a she-wolf.
Sent 2: Historians agree with the mythmakers that the site and traditional founding date of 753 b.c.
Sent 3: are just about right.
Sent 4: Under Etruscan domination, Rome had been a monarchy until a revolt in 510 b.c.
Sent 5: established a patrician republic, which lasted five centuries.
Sent 6: In contrast to other Italian cities weakened by internal rivalries and unstable government, Rome drew strength from a solid aristocracy of consuls and senate ruling over plebeians proud of their Roman citizenship and only rarely rebellious.
Sent 7: Recovering quickly from the Gallic invasion of 390 b.c.
Sent 8: , the Romans took effective control of the peninsula by a military conquest reinforced by a network of roads with names that exist to this day: Via Appia, Flaminia, Aurelia.
Sent 9: All roads did indeed lead toand fromRome.
Sent 10: By 250 b.c.
Sent 11: , the city's population had grown to an impressive 100,000.
Sent 12: Roman power extended throughout the Mediterranean with a victory in the Punic Wars against Carthage (now Tunisia) and conquests in Macedonia, Asia Minor, Spain, and southern France.
Sent 13: The rest of Italy participated only by tax contributions to the war effort and minor involvement in commerce and colonization.
Sent 14: Resentment surfaced when former Etruscan or Greek cities such as Capua, Syracuse, and Taranto supported Hannibal's invasion in 218 b.c.
Sent 15: Rome followed up defeat of the Carthaginians with large-scale massacres and enslavement of their Italian supporters.
Sent 16: The Third and final Punic War ended in 149 b.c.
Sent 17: , though national solidarity was still a long way off.
Sent 18: Under Julius Caesar, elected in 59 b.c.
Question: What event established a patrician republic in Rome for five centuries?.

Output: 4, 5.

Input: Consider Input: Paragraph- Sent 1: He was gone, like the shades of which he had spoken, and Mademoiselle and I were left staring at the black rectangle of the broken door.
Sent 2: I drew a deep breath and looked about me quickly.
Sent 3: It seemed somehow as though a spell were broken, as though the curtain had lowered on some final act in the theatre.
Sent 4: Slowly my mind seemed to free itself from a hundred illusions, and to move along more logical paths.
Sent 5: Brutus went to the arms rack in the corner, and selected a rusted cutlass from the small arms that still rested there, thrust it at me playfully and grinned.
Sent 6: For a minute or even more, the single log that was still burning in the fireplace hissed drowsily, and I could hear the vines tapping gently on the windows.
Sent 7: Then I heard a pistol shot, followed by a hoarse cry.
Sent 8: Mademoiselle started to her feet, and then sank back in her chair again, and from where I was standing I could see that her face was white and her hands were trembling.
Sent 9: So she loved him.
Sent 10: My hand gripped hard against the back of a chair.
Sent 11: Why should I have hoped she did not?.
Question: What causes Mademoiselle to become upset?.
Output: 7, 8, 9.