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 (", ").

Example Input: Paragraph- Sent 1: Albrecht Durer (/'dU@r@r, 'djU@r@r/; German: ['albRect 'dy:Ra]; 21 May 1471 - 6 April 1528) was a painter, printmaker and theorist of the German Renaissance.
Sent 2: Born in Nuremberg, Durer established his reputation and influence across Europe when he was still in his twenties, due to his high-quality woodcut prints.
Sent 3: He was in communication with the major Italian artists of his time, including Raphael, Giovanni Bellini and Leonardo da Vinci, and from 1512 he was patronized by emperor Maximilian I. His vast body of work includes engravings, his preferred technique in his later prints, altarpieces, portraits and self-portraits, watercolours and books.
Sent 4: The woodcuts, such as the Apocalypse series (1498), retain a more Gothic flavour than the rest of his work.
Sent 5: His well-known engravings include the Knight, Death, and the Devil (1513), Saint Jerome in his Study (1514) and Melencolia I (1514), which has been the subject of extensive analysis and interpretation.
Sent 6: His watercolours also mark him as one of the first European landscape artists, while his ambitious woodcuts revolutionized the potential of that medium.
Sent 7: Durer's introduction of classical motifs into Northern art, through his knowledge of Italian artists and German humanists, has secured his reputation as one of the most important figures of the Northern Renaissance.
Sent 8: This is reinforced by his theoretical treatises, which involve principles of mathematics, perspective and ideal proportions.
Question: Was Durer patronized by Maximilian I when he created the Apocalypse series?.
Example Output: 2.

Example Input: Paragraph- Sent 1: We were cornered in a sort of way already.
Sent 2: But these butchers up the cavern had been surprised, they were probably scared, and they had no special weapons, only those little hatchets of theirs.
Sent 3: And that way lay escape.
Sent 4: Their sturdy little forms--ever so much shorter and thicker than the mooncalf herds--were scattered up the slope in a way that was eloquent of indecision.
Sent 5: I had the moral advantage of a mad bull in a street.
Sent 6: But for all that, there seemed a tremendous crowd of them.
Sent 7: Very probably there was.
Sent 8: Those Selenites down the cleft had certainly some infernally long spears.
Sent 9: It might be they had other surprises for us.... But, confound it!
Sent 10: if we charged up the cave we should let them up behind us, and if we didn't those little brutes up the cave would probably get reinforced.
Sent 11: Heaven alone knew what tremendous engines of warfare--guns, bombs, terrestrial torpedoes--this unknown world below our feet, this vaster world of which we had only pricked the outer cuticle, might not presently send up to our destruction.
Sent 12: It became clear the only thing to do was to charge!
Sent 13: It became clearer as the legs of a number of fresh Selenites appeared running down the cavern towards us.
Question: Who did there seem to be a tremendous crowd of?.
Example Output: 2, 6.

Example 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: What happened for the first time in Guatemala that has happened previously in Mexico?.
Example Output:
1, 6, 7.