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: From Babylon, Alexander went to Susa, one of the Achaemenid capitals, and captured its legendary treasury.
Sent 2: He sent the bulk of his army to the Persian ceremonial capital of Persepolis via the Royal Road.
Sent 3: Alexander himself took selected troops on the direct route to the city.
Sent 4: He had to storm the pass of the Persian Gates (in the modern Zagros Mountains) which had been blocked by a Persian army under Ariobarzanes and then hurried to Persepolis before its garrison could loot the treasury.
Sent 5: On entering Persepolis, Alexander allowed his troops to loot the city for several days.
Sent 6: Alexander stayed in Persepolis for five months.
Sent 7: During his stay a fire broke out in the eastern palace of Xerxes and spread to the rest of the city.
Sent 8: Possible causes include a drunken accident or deliberate revenge for the burning of the Acropolis of Athens during the Second Persian War.
Question: What are the possible causes for the fire that broke out in the eastern palace of Xerxes?.
Example Output: 7, 8.

Example Input: Paragraph- Sent 1: In February 1998, the 40-year-old Saudi exile Usama Bin Ladin and a fugitive Egyptian physician, Ayman al Zawahiri, arranged from their Afghan headquarters for an Arabic newspaper in London to publish what they termed a fatwa issued in the name of a "World Islamic Front."Sent 2: A fatwa is normally an interpretation of Islamic law by a respected Islamic authority, but neither Bin Ladin, Zawahiri, nor the three others who signed this statement were scholars of Islamic law.
Sent 3: Claiming that America had declared war against God and his messenger, they called for the murder of any American, anywhere on earth, as the "individual duty for every Muslim who can do it in any country in which it is possible to do it."Sent 4: Three months later, when interviewed in Afghanistan by ABC-TV, Bin Ladin enlarged on these themes.
Sent 5: He claimed it was more important for Muslims to kill Americans than to kill other infidels."Sent 6: It is far better for anyone to kill a single American soldier than to squander his efforts on other activities," he said.
Sent 7: Asked whether he approved of terrorism and of attacks on civilians, he replied:"We believe that the worst thieves in the world today and the worst terrorists are the Americans.
Sent 8: Nothing could stop you except perhaps retaliation in kind.
Sent 9: We do not have to differentiate between military or civilian.
Sent 10: As far as we are concerned, they are all targets."Sent 11: Note: Islamic names often do not follow the Western practice of the consistent use of surnames.
Sent 12: Given the variety of names we mention, we chose to refer to individuals by the last word in the names by which they are known: Nawaf al Hazmi as Hazmi, for instance, omitting the article "al" that would be part of their name in their own societies.
Sent 13: We generally make an exception for the more familiar English usage of "Bin" as part of a last name, as in Bin Ladin.
Sent 14: Further, there is no universally accepted way to transliterate Arabic words and names into English.
Sent 15: We have relied on a mix of common sense, the sound of the name in Arabic, and common usage in source materials, the press, or government documents.
Sent 16: When we quote from a source document, we use its transliteration, e.g.,"al Qida" instead of al Qaeda.
Sent 17: Though novel for its open endorsement of indiscriminate killing, Bin Ladin's 1998 declaration was only the latest in the long series of his public and private calls since 1992 that singled out the United States for attack.
Sent 18: In August 1996, Bin Ladin had issued his own self-styled fatwa calling on Muslims to drive American soldiers out of Saudi Arabia.
Question: Why does the author use the spelling "Al Quida" instead of "Al Qaeda"?.
Example Output: 14, 15, 16.

Example Input: Paragraph- Sent 1: Bin Ladin and his aides did not need a very large sum to finance their planned attack on America.
Sent 2: The 9/11 plotters eventually spent somewhere between $400,000 and $500,000 to plan and conduct their attack.
Sent 3: Consistent with the importance of the project, al Qaeda funded the plotters.
Sent 4: KSM provided his operatives with nearly all the money they needed to travel to the United States, train, and live.
Sent 5: The plotters' tradecraft was not especially sophisticated, but it was good enough.
Sent 6: They moved, stored, and spent their money in ordinary ways, easily defeating the detection mechanisms in place at the time.
Sent 7: The origin of the funds remains unknown, although we have a general idea of how al Qaeda financed itself during the period leading up to 9/11.
Sent 8: General Financing As we explained in chapter 2, Bin Ladin did not fund al Qaeda through a personal fortune and a network of businesses in Sudan.
Sent 9: Instead, al Qaeda relied primarily on a fund-raising network developed over time.
Sent 10: The CIA now estimates that it cost al Qaeda about $30 million per year to sustain its activities before 9/11 and that this money was raised almost entirely through donations.
Sent 11: For many years, the United States thought Bin Ladin financed al Qaeda's expenses through a vast personal inheritance.
Sent 12: Bin Ladin purportedly inherited approximately $300 million when his father died, and was rumored to have had access to these funds to wage jihad while in Sudan and Afghanistan and to secure his leadership position in al Qaeda.
Sent 13: In early 2000, the U.S. government discovered a different reality: roughly from 1970 through 1994, Bin Ladin received about $1 million per year-a significant sum, to be sure, but not a $300 million fortune that could be used to fund jihad.
Sent 14: Then, as part of a Saudi government crackdown early in the 1990s, the Bin Ladin family was forced to find a buyer for Usama's share of the family company in 1994.
Sent 15: The Saudi government subsequently froze the proceeds of the sale.
Sent 16: This action had the effect of divesting Bin Ladin of what otherwise might indeed have been a large fortune.
Sent 17: Nor were Bin Ladin's assets in Sudan a source of money for al Qaeda.
Sent 18: When Bin Ladin lived in Sudan from 1991 to 1996, he owned a number of businesses and other assets.
Question: What did U.S. government erroneously believe about Bin Laden's ji-had?.
Example Output:
11, 12, 13.